N54 lpfp log The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP. Other than that it looked fine. The N54/early n55 high-pressure pump is a very capable and over-engineered piece of hardware. Finished it last week and with some minor fueling issues it looks to be working good. New posts. I'm going to suspect based on that log (which doesn't look like you had a 29DC code) your issue may be something with bank 2, you're getting misfires and then getting a 29DC as a RB N54 PCV valve 7. Home; JB4 BMW 1 Series (N54) E81 E82 E87 E88 1M BMW E-Chassis Dual Walbro Stage 4 LPFP Upgrade Kit for the N54 and N55 Motors. I'm on jb4 e85 bef. Cost: $850+ Stage 3 LPFP kits are venturing into the territory of extreme fueling demands. Lots of people doing this currently until I have time to finish the full NLS code. N54 . I recently replaced my low pressure fuel pump with one from black market parts. It's because of all the complaints, all the uphill fights by people disgusted with BMW's response, and after a long period of time N54 Dyno Chart Compilation - Page 35. Hey guys, so I just put in my new lpfp. I have also an Helix HPFP Overdrive System installed, which is working pretty good whith flash only (i mapped the car by myself). Thread starter Tuppidsay; Start date Dec 31, 2017 Yes here is another log, the trims were still high back then but I thought it was because my LPFP was failing. Troubleshooting . Register. LPFP is bouncy as well but that doesn't caused the HPFP crash like that. Resources. Appreciate 0 Quote 06-11-2017, 03:52 PM With MHD, use flash options for shift bog fix + PI safety. 3. Join Date: Feb 2011. I've compared this data log to a previous one from a few months ago to verify that my LPFP was making pressure then Upgrading lpfp n54 With the ultimate goal of having a track day 700hp single turbo and a daily with 550hp, upgrading to a fuel it stage 3 is the plan. 0 and did two logs as MHD asks (2500RPM in 3rd, pull until 3-4s in 4th), and everything looks good in third (with one cylinder timing hitting -3. kaiv; Jul 28, 2024; N54; Replies 3 Views 534. IQraceworks all the plugs after the car sat all dayall dry and look fine (no leaky injectors). 0L, I had the HPFP, new programming, and a low pressure fuel sensor replaced a few days ago as part of the N54 recall. 82AR/Other stuff652WHP F30 N55 XDrive EBII. . Snelson3003 Sergeant. The HPFP was recently replaced with a genuine BMW replacement and the LPFP is a Precision Raceworks Walbro 535 (bucketed). Rep. The HPFP is running at 2000 psi so the LPFP pumps pressure is not very important. Appreciate 0 Quote 09-14-2020, 04:09 PM #7: graylens. Collapse. F40Model It's really useful for logging things like this and could certainly shed some light on your fuel pressure issues. (Submitted by Emission) Why is everyone concerned about the This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. F40Model Year: 2019 + Previous Generations; F20 am happy to provide logs if that helps just need to know what to actually log? i logged lpfp and hpfp together and the hpfp does dive to 300ish psi, when its requesting 2000+ but the lpfp also is erratic and goes between 46 When going WOT my n54 has a jerking/hiccup (3-4 times) in the high rev band. Log in 3rd gear if you are 6MT or 4th gear if you are 8AT. I'm only giving it about half acceleration. Ok ok, I'm on it. And is becoming extremely frustrating. Please Dave. HPFP is a bit erratic. Where's everyone getting their pumps from nowadays? Has anyone made any advancements for the N54 HPFP? Just had a custom tune done and I'm running more E85. Feels like misfires when under mild acceleration. Cost of the injectors is ridiculous / availability on a long term basis looks suspect IF you can get similar (maybe better) performance then it’s an option Maybe you can get more headroom with a choice of injectors. Hi guys, LPFP and Load requested (0 at the start before I pushed the start engine button) Edit: If you can, log your fuel trims and see if anything is whacky. Fuel-It N54/N55 650whp LPFP Upgrade Kit quantity. So I flashed 93oct V9. We have been testing this for almost a year now and here it is finally in a release post. 1. Forums. Easiest way to see if it's bad is go take a log from 2k rpm in 3rd to 4th and redline 4th. I basically removed everything besides the fuel pump during the night, then the next morning removed the fuel pump BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > AFR 20 again After new lpfp + Log Thread Tools: Search this Thread 09-20-2015, 06:20 PM After new lpfp + Log. 0 on 93 octane / 22 Made a post before this about the issue, so with a 5 month old FPR, brand new LPFP from fcp euro, new HPFP from fcp euro, non leaky injectors, new injector seals, 6 month old lpfp sensor, and now I swapped my ekpm2 out for a ekpm3 and coded it. kaiv New Member HPFP looked fine, LPFP did seem to stay in the 50s for a bit for you having a bigger fuel pump. The PFS POD (Planetary Over Drive) is an overspeed gearbox for your N54 high pressure fuel pump. The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP, N20 TMAP. Drives: 335i. The most disturbance is the last one on the freeway at almost WOT. ER N54 Charge Pipe for Tial BOV $614. Appreciate 0 Quote FuelIt stg 3 LPFP | Cpe/BMS PI | 100% E85 | DSS Axles | AR DPs | Cpe FMIC | Tial BOV N54 World Record ET: 10. This fuel pump modification has been shown to effectively supply ethanol mixes higher then the High Pressure Fuel Pump (HPFP) can adequately utilize. (Some tuners might recommend a different gear, but these are generally the best to get a long pull and see how things are behaving. Here is my theory on how the HPFP works (based on my observations) and the two different reasons the pumps can fail. 0L, BMW E88 N52 3. : N54 pure stage 2. Install was straightforward, a bit cumbersome for the e89 As far as the fuel pressure, I wouldn't worry about it too much yet. Sign in or Create an Account. On E85 less than 400. 00 Dual Walbro 450 Pumps / Install a return line fitting (+ $25) / Do NOT add a Hobb's switch - $1,024. Advanced Tuning Nov 24 An alternative is the EOSpeed BPM4 controller - which redesigned to support higher lift pump demands for the N54/N55. 0L High Pressure Fuel Pumps Performance; Sort By Return to Top High Pressure Fuel Injection Pump - N54 N55 Sign up. Instead helix or other aftermarket solutions. Stock turbo, FBO, running E50 and stage 2 lpfp Can someone review the log and provide insight? Thanks Not sure what’s wrong with car guys. Why should not e89 will be able to output about 600hp crank when other n54 can do it without PI or overdrive? Seen many 335 that runs great with only upgraded lpfp and stock hpfp doing N54. Primed the pump with ProTools before starting. 3, kind of high? and then tapering and in the second log another matching it), but then as soon as I shift to 4th all cylinders experience heavy corrections, ranging from 0 all For all the E90 owners that are N54 powered. Thread starter kaiv; Start date Jul 28, 2024; Forums. _____ 2013 E92 335is-Alpenweiss. Distress Call: Save my N54. I have a 2008 335i (N54). The Blue line is the HPFP You didn't stay WOT but the log looks pretty normal with the exception of your trims. log your lpfp and hpfp with mhd upon start up that will tell you whats going on with it kingofvirgo83 • What he said do a log if the hpfp is dipping under 1500 for the rail pressure or if it's falling off at wot dropping to under 1k it's a issue Reply reply N54 HPFP Rebuild- DIY- We are proud to introduce the latest in our line of N54 turbocharger products the VTT Stage 2+ hybrid turbochargers. Rail pressure was around 1350 to 1450 and lpfp didn't dip below 62psi. NoGuru Captain. These are logs in different situations this morning. Will hardly get out of the neighborhood. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LPFP or HPFP Failing? Google Search Search Forums Fuel-IT Stage 1 kits are designed to be installed inline with your stock low-pressure fuel pump (LPFP). N54 3. BMW N54 Stage 3 LPFP DIY: Ready For Port Injectionhttps://www. Location: Fairmont, WV. Tune In. This post applies to the JB4 specifically, but the parameters on MHD are more or less the same. This time the HPFP never got above 50psi I know there are thousands of threads about the high-pressure fuel pump (HPFP) and that it fails. Is my lpfp keeping up enough for it and looking healthy in this 3rd Log in. F40Model Of course I cannot capture this happening in a log but this happens pretty regularly. This value represents the voltage of the high pressure 0-5V sensor, where a value of 20 is 5v. / Do NOT add a Hobb's switch - $999. But it appears your pressures are fine based on the informations If your FOL is pinned at 90, that's also a sign of a weak hpfp (and/or lpfp, but Why don't you download the JB4 logging macro on the "BB" website. 95 $295. zeroto60. https Datalog New N54 ower seeking log feedback. I've searched everywhere and can't seem to find any good DIY's for replacing the HPFP on an N55. the same ISSUE still consists. iTrader: I have a similar problem. E90/E91/E92/E93 . This will be a project I work on in the side, but through the tear down process is shows a lot and answers a few questions I had about what could be failing and etc. Apr 19, 2017 1,780 711 0 i drive an 135i N54 with a Docrace Top Mount Kit with a Garrett GTX3576r. 0L, BMW E93 N54 3. marseille Specialist. 00 Dual Walbro 450 Pumps / Install a return line fitting (+ $25) / Add a 15psi Hobb's Might just be tuning needed but could point to some of the other hurdles that still need to be crossed. N54 Stage 3 LPFP Upgrade. Posts; Latest Activity; Photos . Log in; or; Create account; Cart 0. F40Model Year: 2019 + Previous Generations let the logs speak for themselves Stage 2 lpfp walbro 450 bucketless DIY PR ignition coils NGK 1 step colder plugs VRSF 2" Stainless steel relocated inlets VRSF 5" intercooler E90/E91/E92/E93 (2006 - 2013) What is the MMBF of the HPFP on your N54 equipped vehicle? Jump to Latest Follow Follow N54 335i Long Crank. As long as you stay above 50psi it shouldnt be a problem up Fuel-It BMW N54 & N55 Stage 2 LPFP Bucketless Low Pressure Fuel Pump (1M, 135i & 335i) Fuel-It BMW N54 & N55 Stage 2 LPFP Bucketless Low Pressure Fuel Pump (1M, 135i & 335i) Sign up now for FREE. My lpfp psi drops from the high 60s to the low 30s under WOT. 2 in the bucket and 1 outside. Fuel-It Stage 1 bucketed low pressure fuel pump upgrade for the N5450% increase in pump flow, capable of running higher ethanol levels than the stock pump wh LPFP log does this look normal? HELP. 94 after Index 12. "If somebody is in an accident and they're hurt and BMW pays them enough, they sign the gag clause, and we don't hear about it," lemon law attorney Robert Silverman from Kimmel & Silverman, P Anyone running a single Walbro 525 LPFP in their N54 335's? Bimmerpost ☰ Model Selection. 00 **SUPER VALUE** N54Tuning Line - N54 Catless 3" Downpipes $388. Happy driving! The FPM-1 DIY E85 Pump Kit is the perfect solution for those 135i 335i N54 and N55 owners who are maxing out their factory low pressure fuel pump (LPFP) when running E85 fuel mixes. The new Walbro 450 pump provides approximately 100% more flow than stock and this assembly can be purchased one of three ways to meet your needs. Values for LPFP at idle around 69-72psi and 695-720psi for the HPFP. 7. This solution provides up to 25% more flow than our standard Stage 2 LPFP upgrade and up to 150% more flow than the stock pump. LPFP and This is a complete plug and play solution to replace your stock Low Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly. This Precision Raceworks Low-Pressure Bucketed Fuel Pump Kit - Stage 2. N54 JB4 timing logging 06-25-2019, 04:21 AM. N54 low pressure from LPFP. The HPFP however only supports ~420-430ish whp on full e85. Do you think it could be failed or failing O2 sensors? I saw a video on how to Diagnose on INPA I can try to do that later this evening. I’ve went through 2 offbrand OEM pumps and now on a OEM VDO brand pump. View full details Description. Mechanical fuel pump flow potential is a function of shaft speed -spin it faster, get more fuel flow. Even then the lpfp stays on when the People complained a lot because when the N54 was introduced and HPFPs failed, BMW refused to acknowledge the issue. kaiv; Jul 28, 2024; N54; Replies 3 Views 539. for routine maintenance and when doing a data log after just to see how everything was running I noticed that the LPFP is reading 0-1 psi under any circumstance (idle to WOT). They provide approximately 50% more flow when combined with your stock pump and can be purchased with or without the Walbro GSL392 pump. N54 Infamous Cylinder 5 timing corrections with How do you Data-Log on the N54? We wrote an in-depth post on data-logging: BMW N54 JB4 data-logging. They do a good job supplying fuel at high pressures at stock power levels. Before i make any logs i would like to explain my build and maybe get some insight. Don't want you to miss this - BMW of North America has notified the US Environmental Protection Agency (EPA) of its intent to conduct a voluntary recall of some model year 2007-2010 BMWs equipped with twin-turbo inline six-cylinder engines, all of which feature BMW's High Precision Injection direct fuel injection system. Menu we recommend an in-tank LPFP upgrade with at least a Single Shot 274 LPFP for power levels up N54 having LPFP spikes over 110psi! 2007 335i e92 Fuel-it stage 3 LPFP 550 cc PI AIC2 Motiv- FF sensor Running e85 In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I This is a complete plug and play solution to replace your stock Low Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly. On N55's without the changes it seems startup is fine but warm is noisy which is the reverse of the N54. BMW has had multiple recalls for this HPFP on the N54. I may have to buy MHD at some point so i am able to log values for you to see LPFP looks fine. Bumping this thread. . N54 Next step with my E89 Z4 - fuel supply. 195. Please enter a valid email. Paarma78; Oct 15, 2023; Advanced Tuning; 2. can you please somebody check out my logs? Just logging (or simply viewing)fuel pressure. Aug 17, 2020 Fuel-It Stage 1 bucketed low pressure fuel pump upgrade for the N5450% increase in pump flow, capable of running higher ethanol levels than the stock pump wh In the log below you'll see that the LPFP readings dip well into the low 50's; even as low as 49 psi. Supplying fuel to the HPFP is the issue. Hi guys, i read on an old thread that there are 2 ways to log Timing, 1. This often looks something like a single Walbro 450 or Walbro 525 LPFP. In general you want to log your short term fuel trims (STFTs) on both banks as well as long term fuel trims (LTFTs) on both banks and ensure that they're not being maxed in either direction. Inspired by martymil’s post I decided to pull my HPFP filter, drill my fuel rail, add an inline filter and upgrade the line from the tank to the HPFP hard line. E Chassis 135i, 335i, and X1 Stage 2 Bucketless LPFP UpgradeThis is a complete low-Pressure Fuel Pump (LPFP) upgrade that replaces your st I had the HPFP, new programming, and a low pressure fuel sensor replaced a few days ago as part of the N54 recall. The inlet line to the hpfp than holds the lpfp sensor also is the size of a matchstick on the bends, this also needs replacing. Fuel-It BMW N54 & N55 Stage 1 LPFP Low Pressure Fuel Pump (1M, 135i & 335i) Fuel-It BMW N54 & N55 Stage 1 LPFP Low Pressure Fuel Pump (1M, 135i & 335i) Regular price £210. New Member. N54 535I (E6X) LPFP Upgrade Stage 2 (Mfg#BMW-S2LPFP-E6X) fits BMW E60 N54 3. Drives: 2013 BMW Never thought I would have to post on forums for help but here I am. Definitely the buy it and run with it solution. You need to log a Next step on the BMW-N54 testing checklist, E85 !!! TuningTech FS #directinjection #XDIarmy #XDIHPFP #DIonly #DImakesmorepower #BMW #N54 #bmwaddict #bmwmotorsport #bmwpower #bmwperformance Datalog New N54 ower seeking log feedback. Car has been maintained meticulously since day 1 (2008). LPFP runs steady around 70-72 psi at idle and Over the last few months my low pressure fuel pump pressure has been Here is a log from when my HPFP was going bad. Looking like it might be both the HPFP and LPFP both don't seem real happy. zomski101 I made 484 whp on e50 with mmp stage 3 and single walbro 450. Also your running stage 2+ and your IATs are climbing like crazy. N54E92 Lurker. SKU: Fulfilled by BMW E92 335i N54 3. What’s a tell-tale sign that the LPFP sensor needs to be replaced? I installed the BPM4 and my LPFP values are still jumping wildly. Chassis. By no means am I an expert on this, but everything I've read on it suggests a failing hpfp. Garage. Page of 1. Sign up. engine : N54 with 120k miles Index 12 injectors Walbro 450 lpfp 1 stage colder plugs--custom exhaust manifold with holset hx40super Three things jump out at me when comparing the results. Thread starter N54E92; Start date Aug 18, 2020; Forums. All you need is your fuel level sensor and top hat. The info for Reflex is not so great. 5v2 (Mfg#601-0177) fits BMW E82 1 M Coupe, BMW E82 128i, BMW E82 135i, BMW E88 128i, BMW E88 135i, BMW E90 325i, BMW E90 325xi, BMW E90 328i, BMW E90 328xi, BMW E90 330i, BMW E90 330xi, BMW E90 335d, BMW E90 335i, BMW E90 335xi, BMW E92 328i, BMW E92 328xi, BMW Below I will attach a few logs; the lowest I have seen this LPFP drop was about 65 PSI, but on average sits in the 70PSI range. Shut the engine down and watch if the pressure falls rapidly. the car feels faster, but the lpfp can also cause this and i dont know if its coincidence but now i veryvery rarely, i still Lpfp upgrade worth or not? Bimmerpost ☰ Model Selection. Im thinking about adding another 10% to the duty cycle until the STFTs stabilize. Upgrading lpfp n54 With the ultimate goal of having a track day 700hp single turbo and a daily with 550hp, upgrading to a fuel it stage 3 is the plan. At the end of the day the N54 injectors are always a hard limit in terms of injection and no high HP build is ever 100% DI based, and for good reason. Also, when you start Representing e-biking in its simplest form, Tenways carves out a niche. It sat in my tank for almost a year while my car was being fixed. We have great torque-sensing bikes with a sporty profile and enough grunt for steep hills despite their single gear. When these were first introduced breaking 600whp was a big deal but now we're encroaching on 900whp so an update was needed N54 DI fuel injectors are flaky at besteven Index 12’s seem to go bad. You can can then select some extra channels that should let us see what part of the LPFP calc is off. Search. I attached a log as well to show the lean spike and HPFP crash but i drive an 135i N54 with a Docrace Top Mount Kit with a Garrett GTX3576r. First, as expected the BTN7960 on resistance is higher than the BUK9107-40ATC. Cart 0. For sure replacement injectors will be a lot cheaper Regarding fueling hardware, our standard stage 2 LPFP supports ~550 whp on 100% e85. LPFP improvements draw greater current, which may create problems with the EKP. Get more out of your N54 Engine! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select Can a N54 run with 0 low side fuel pressure. We take our already robust stage 2 design utilizing all its ground breaking features, and machine the compressor housing Made a post before this about the issue, so with a 5 month old FPR, brand new LPFP from fcp euro, new HPFP from fcp euro, non leaky injectors, new injector seals, 6 month old lpfp sensor, and now I swapped my ekpm2 out for a ekpm3 and coded it. Those are You need to log a proper pull. Estimated time: 6hours* (highly recommended to let the car cool down overnight. Appropriate logging should be used to DIY: N54 HPFP Replacement. BMW E-Chassis Walbro Stage 2 LPFP Upgrade (N54/N55) $ 549. After the replacement my car now idles around 50 psi and pretty much stays there through the Rev range. Before replacing the pump my car idled around 68 PSI and would dip to around 47psi at wot. https://datazap. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. Thank you. Feb 25, 2019 It is a bit frustrating trying to push it to the edge and constantly watching logs to make sure rail pressure looks good. Any Installed a stage 2 LPFP last night. They all start with 0 so are at the top of the param list. E81 / E82 / E87 I'll need to log to get the whole story but at this point I'm very happy with the purchase. Add to cart. Would dual walbro 450s be adequate for hitting that range or would it be best to do a 450 primary and a 525 secondary? FYI - As of December 2009, an unconfirmed source from Bimmerfest says BMW has given another try to improve the high pressure fuel pump in the N54 engine. LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Do NOT add a Hobb's switch - $399. N54 LPFP Q. Dealerships and BMWNA placed the blame on the consumer, on the gas they use, and anything else. Note all N54 include this and other platforms can only log this if also equipped with the flex fuel connector. Menu / Search. N54 29F3 (10739) Fault Code. I only have access to INPA (K+DCAN cable) and a handheld OBD BMW reader at the moment so I am unable to see AFR. Appropriate logging should be used to E92 335is w/DCT - MHD tuned The car's got a pretty bad stutter when under load (merging onto the highway type). B58 pump also have 2 pins. The stock B58 pump is DONE on pump gas by 450WHP. So pressure tables should be adjusted accordingly, assuming the n55 tables are defined at some point. The second pump wires will come with ring terminals so you The 2020 saga of my 2008 E93/N54. I've had some time to put some miles on and all seems well. HK Sound-Premium-Nav. Now upgraded to include the float sensor and pump pre-filter -everything except the pump! This series is for the mechanically inclined who want to provide their own pump(s) and handle their own LPFP build while not skimping on quality. During WOT logs it goes up and I'm reaching the 70--80 psi range and meeting fueling AFR targets of 12. This log shows me first doing a pull at 22psi where it misfired and sent my car into limp, can you please check this one Steve to identify if it is still in fact the fuel that caused the misfire? The second curve in the log is a pull on 18psi, worked seamlessly. Lots of stuff for the N54 but there are enough differences with the two motors that I'd prefer an apples to apples DIY. Ive seen logs where people just generally have a weak hpfp and it crashed down to 600-700 sometimes, and ive seen logs where peoples hpfp are fine, they dump in a lot more e85 content than the fuel system can handle, and it crashes down to 600-700 lol Mine likes to hang around 82 psi under no load and low load, but occasionally it's around 72 psi in the same conditions. ktb_e92. - set All cyl logging in setup menu Did you follow the initial settings for hybrids? I mean FF learning should be off. Appreciate 0 N54 Bucketless Fuel Pump Upgrade - "Stock Series" Horsepower Supported: Single Shot: 600WHP on Racegas ethanol blends below E50 525WHP on Ethanol blends above E50 Double Shot: 700WHP+ on Racegas ethanol blends below E50 (750 with 285 upgrade) 650WHP on Ethanol blends above E50 (700 with 285 upgrade) (If you need more power, we Based on everything I've read I'm guessing that my HPFP is on its way out. Again, data logging is a huge help in diagnosing this issue. Jan 9, 2018 1,212 593 0 Just North of Detroit Ride Datalog New N54 ower seeking log feedback. If your FOL is pinned at 90, that's also a sign of a weak hpfp (and/or lpfp, but your lpfp values look ok). From what I've observed on my own car, sometimes, presumably when the fuel system is unable to maintain its target, it will go into a sort of "failsafe" mode where it disables the closed loop correction and runs a static 55% duty cycle at lower loads, and 100% at WOT. I added 40% duty to the port injectors on the reflex to compensate but the STFTs max out at 34%. The stock LP fuel sensor seals with an o-ring so I This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. can you please somebody check out my logs? Spool Helix HPFP overdrive system Spool Performance is really excited to introduce our latest product offering to the N54/early N55 community, the Helix overdrive unit. ) You can can then select some extra channels that should let us see what part of the LPFP calc is off. PURE Stage 2 N54 Dyno Results! Bimmerpost ☰ Model Selection. Pumps and filters have less than 100 miles on them. 721 | Best MPH 130. Tell us your name, email address, and vehicle to receive special offers for parts, tools, and industry-leading content. My HPFP has loved the new support from the LPFP, sitting in the 2200-2300 PSI range. Overall, how does the lpfp look like it’s doing with just the primary connected? Buy Here: Fuel-It N54 Stage 2 LPFP. Does the imminent appearance of the N55 mean that BMW have quit on the N54 twin-turbo engine and redesigning the HPFP to meet the needs of current owners? Is the 10-year HPFP warranty a business decision to forego resolving the pump issue for N54 models, affording the most economic solution over re-engineering a component of an engine that will Ive always read that anything below 1000 psi is a weak hpfp. Description Additional information Fitment Reviews (0) Description. BMW E92 335i N54 3. Thread starter doublespaces; Start date Jan 20, 2020; Forums. 0L, BMW E84 N55 3. The new HPFP part number is said to end in 943. typedRew Sergeant. Professional installation is encouraged. You'll see a wide range from 400-700 depending on various factors. comThis is the low pressure fuel pump i am going to be running initially with the 17t So for that system you would select N54, then 2 pump and then you have the option to get the OEM connector or not. I would say this is the absolute max. May want to look into going bucketless if you go beyond an MHD map to a custom map. I basically removed everything besides the fuel pump during the night, then the next morning removed the fuel pump E91 N54 335i Sep 12, 2021 Yeah, seems like your HPFP has died. Helps folks if you post a log with all the standard parameters. 95; Shipping calculated at checkout. As these cars get older and less expensive we’re seeing more issues with the stock components and This Precision Raceworks Bucketed Low-Pressure Fuel Pump Kit - Stage 2 (non-modular) (Mfg#601-0176) fits BMW E82 N52 3. 0L, BMW E92 N54 3. After installing MMP Stage 3 turbos on my 135i (write-up coming soon), I needed an upgraded fuel system to get the most power out of the car. Rough cold start 2. while logging, limp mode activated & codes 29e2 & 29f2 set. Never thought I would have to post on forums for help but here I am. 0L, BMW E84 N20 2. Some people think FBO N54’s must have a LPFP and turbo inlets/outlets to truly be full bolt-on. Data-logging is extremely helpful if you are getting this code. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public As far as the fuel pressure, I wouldn't worry about it too much yet. n54 29DC 2AAF Codes Limp Mode LOGS. setting 6 Cyl Timing to 5 for IJE0S. Disclaimer: you do this at your own risk. 92. 0L, BMW E61 N54 3. Bimmerpost ☰ Model Here is a data log showing the 0-1 psi from the LPFP. So recently my car has been feeling horrible and having symptoms of HPFP failure : 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial . My HPFP needed changing, here is my DIY. N54 Jul 29, 2024. 00 – $ 649. Fuel it stage 2 lpfp afe gt momentum JB4 w/ mhd bef custom The N54 rotary pump far outflows any of those cam style pumps. Log actual timing. N54 LPFP Upgrades for Port Injection. The Supra or TU pump is better, but the N54 rotary pump outflows it by a wide margin. This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. Install was straightforward, a bit cumbersome for the e89 My N54 is stuttering above 3000 rpm. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > AFR 20 again After new lpfp + Log Thread Tools: Search this Thread 09-20-2015, 06:20 PM After new lpfp + Log. Reactions: doublespaces and JohnDaviz. me/u Hi guys Few days ago I upgraded my lpfp to stage 2 on my 335i n54 2009, FBO stage 2+MHD and all was good until yesterday when I speed up on a highway and after that I received on my Idrive a message about fuel pump and exclamation sign on my dash bordafter I let the gas pedal, the message disappeared in a few seconds and most of the times I get this N54. 0L, BMW E60 N55 3. It's hard to capture the consequences of some of this stuff even with MHD having half-way decent logging resolution. Tuner says its related to voltage threshold in the EPKM and is mostly harmless but it's driving me nuts. 0L, BMW E82 N54 3. Replies 26 Views 3K. Jan 6, 2019 913 624 0 Ride 335i E92 DCT Jan 30, 2020 #24 Now i only would need an idea to do that on DCT No xHP here . Data-logs would help track down the issue as you can read fuel pressures and determine whether the high pressure or low pressure pump is to blame. The only fix is to replace the EKP module with a new one (virgin module $250) or buy a used one off eBay ($50). We consider the first option as FBO. Menu Home. 3' E93 (09/2005 — 02/2010). 0L: BMW: E93: 335i: N55 3. Included with this kit: New BMW LPFP bucket that is upgraded w The rest of your log looks as if you were just driving around in traffic. It will help The "HPFP" is the common abbreviation for the "high-pressure fuel pump" used on BMW's direct-injected "N54" 3. Then I hooked up MHD, got a log running, and fired up the car. Engine. me | angelz0418 E90/E91/E92/E93 (2006 - 2013) What is the MMBF of the HPFP on your N54 equipped vehicle? Jump to Latest Follow Follow N54 LPFP Upgrades for Port Injection. I have n54 with single turbo kit installed. The current part number as of 12/09 for the HPFP ends in 881. 00 LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Include a 15 PSI Hobb's switch - $434. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be N54 low pressure from LPFP. A ‘proper’ log should be from about 2500 to 6500 rpm. E61 N54 Jul 23, 2019 #1 Installed a stage 2 LPFP last night. Unfortunately with JB4, we can't log fuel pressure target and VCV status. It's $650-750 and people seem to have generally good results with this unit. Decided to take a crack at coming up with possible fixes of the failures for the N54/Early N55 HPFP's and possible upgrades and we all know they are needed for these cars. If you wish to achieve the most power, and utilize full e85, the HPFP needs to be supplemented. My question is that, while everything is running as it is supposed to, there are a lot of times when I am driving that the HPFP drops as low as 600 on the rail pressure. If both pumps check out then you probably have a different issue, such as the sensor. Datalogs. I also replaced my fuel filter/regulator This is a complete plug and play solution to replace your stock Low-Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly. N54 map5/93oct log stock turbos 09-02-2023, 08:46 PM. Records. $1,449. I ended up gorilla arming it out after my patience level was passed. 37 Inc. Would dual walbro 450s be adequate for hitting that range or would it be best to do a 450 primary and a 525 secondary? Why is it that BMW used the fuel rail from the N53 on the 135i and 1M N54 cars which is a different part number from the fuel rail thats on all other N54 3, 5, 7 series, X6, and Z4 cars ? I will post logs when I get done Thank you for your write up!! The fitting most use has a 1/8 npt port. LPFP = 58 psia new normal? Collapse. N. This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 - do a better log(s), on 3th or 4th let's say from a little bit under 3k revs to redline with WOT - your lpfp log value is 48, so problem with sensor? - you should lover DB at range of revs as you're slightly overboost. TUNE IN! Tell us your name, email address and vehicle to receive special offers for parts N54 HPFP VCV Tables. X. Running Fuel-It LPFP Stage 2 on 93 Octane for the last 6 months (no more E85 in Philly - sad). Can anyone help me look at these logs? I think maybe the HPFP but I’m not sure. You don't find many people hitting 500, and certainly very few that manage to go above it. These kits are designed to be installed inline with your stock low pressure fuel pump (LPFP). 00 LPFP upgrade kit without wiring harness / Upgrade However, more likely, this code indicates an issue with the N54’s HPFP or LPFP. Usually the stuttering goes away after dropping back down under 3000 rpm. Note the fluctuations in log your lpfp and hpfp with mhd upon start up that will tell you whats going on with it kingofvirgo83 • What he said do a log if the hpfp is dipping under 1500 for the rail pressure or if it's falling off at wot dropping to under 1k it's a issue Reply reply N54 HPFP Rebuild- DIY- This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85-certified one. Trying to visualize how it will all come together I have a N54 Code 29DC Cylinder injection switch off. This pump has 3 Walbro 450's. Id rather have single bank o2 for single turbo setups first :) Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. Port injection runs off the low-pressure fuel pump. Hey guys, My hpfp is dropping in pressure to ~1500psi under WOT, and then recovers to 2500psi and dips again. Originally posted by General. Stock N54 Rotary HPFP have solenoidcontrol by DME PWM signal 2pins. When the HPFP starts to fail, it's common for the car to go into limp mode, and in severe cases can leave you stranded waiting for a tow. LPFP explained Post Reply Thread Tools: Search this Thread 10-14-2015, 09:18 PM #1: capcadet05. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. Back when I had rail pressure issues with my helix, I forgot to Also if i understand correctly it is able to log LPFP in Reflex+, the parameter which we were unable to log onb/E89. Jan 9, 2018 1,212 593 0 Just North of Detroit Ride BMW 335is Aug 17, 2022 #3 135i n54, E87 N54 Aug 17, 2022 #5 Datalog New N54 ower seeking log feedback. Any help is much appreciated. @PRECISON RACEWORKS Pretty ingenious design having it set higher in the bucket to allow double in bucket Wallys + venturi, and the 3rd placement holder is awesome as well. Location: Belgium. Is there a mechanical way you can measure the There is only LPFP on the first log and at least on my end the second link says I I've got 33k miles on my N54. N55 vac pump / fuel pump housing also have cam possition sensor i question i can just leave it not connected. 0L, BMW E90 N54 3. VAT. What is happening here is that the high-pressure pump is not able pump as much fuel as the BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LPFP Pressure Value at WOT I ran a cold start log and the rail pressure and lpfp pressure was fine, started my log before I turned the car on so I saw the pressure build while priming Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. N54 but I don't have any data logs to go back and check. One of the most common failures on all BMWs with the N54 (and early N55) engine is the high-pressure fuel pump, regularly referred to as the HPFP. On <12. Maybe with a more aggressive LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Do NOT add a Hobb's switch - $399. Let it idle, continue monitoring hpf pressure. I’m attaching the data log. As we start tuning and pushing more power, we start seeing drops in the high pressure. FP H: Fuel pressure, high system. JohnDaviz Lieutenant. Nov 7, 2016 Causing many driving issues like a crashing LPFP which takes out the HPFP and causes a misfire. There is NO information at this time as to when this pump will be released or used. Filter. Appreciate 0 Quote Never thought I would have to post on forums for help but here I am. 3 and 4-Series. 1 X New E85 compatible Walbro 535pump (F90000295). I just went back and checked some logs from the stock LPFP and it did the same thing, so this discrepancy isn't unique to an upgraded pump. Yea, the plastic pump holder inside was a pain in the ass. The new Walbro 450 pump provides approximately 100% more flow than stock! The new Walbro 450 FCPeuro has a re-manufactured one with a lifetime warranty for $400. The vibrations have stopped a bit, but they was still there, so i get angry and changed to Stage 2 LPFP, with EKPM3 module, all of index 9 and mis-mas-ch set of injectors, to brand new index 12 injectors, properly coded. Anyone running a single Walbro 525 LPFP in their N54 335's? Bimmerpost ☰ Model Selection. The new Walbro 450 pump provides approximately 100% more flow than stock! Next step on the BMW-N54 testing checklist, E85 !!! TuningTech FS #directinjection #XDIarmy #XDIHPFP #DIonly #DImakesmorepower #BMW #N54 #bmwaddict #bmwmotorsport #bmwpower #bmwperformance Datalog New N54 ower seeking log feedback. Single pumps usually support about 450-550whp on 100% E85 with port injection. Jul 1, 2019 94 56 0 Ride E61 N54 Jul 23, 2019 #1 Installed a stage 2 LPFP last night. This Dual Walbro 450 Pumps / No return fitting installed. Also all of these logs are purely pump gas from shell. This setup is 1500 new from PR. Its will be easy solution to fix old n54 hpfp nightmares. 0L. _____ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial . Bimmerpost ☰ Model Selection. Whatever intercooler you have isn't good enough to keep IAT down. 41. 0L, BMW E88 N54 3. Enough background and on to the datalogging and log reading First, how to collect a log. / Add a 15psi Hobb's switch (+ $40) - $1,039. The programming doesn't seem to have negatively changed driving feel. matreyia Major. Check fuel pressures for the high and low-pressure pumps. Otherwise known as the high pressure pump. 0L, BMW E82 N55 3. 5 N55 with the N54 type <50PSI sustained LPFP (Low Pressure Fuel Pump) is not acceptable - The occasional dip below 50PSI is not usually a cause for concern, it’s a sustained pressure below 50PSI that is typically indicative of a failing LPFP or perhaps a high ethanol content fuel coupled with an aggressive tune, in either case the LPFP should be addressed. Appreciate 0 Quote Most of these legal actions have led to settlements on the condition that BMW drivers sign a confidentiality agreement, plaintiffs' lawyers told ABC News. Upvote 0 Downvote. N54 Powered M5 Wagon: - M5 Driveshaft, M5 LSD, M5 Axles, M5 Brakes, M5 Rear Suspension - M5 Front End, M5 skirts, M5 Mirrors, M-Tech Rep Rear - KW V3, RD Sport Sways, UR Strut Braces, Forgestar F14 SDC - Manual Trans Swap, MFactory SMFW, Spec Stg 3+ Clutch, UUC SSK - EOS Port Injection Manifold, Fuel-It: Stg 2 LPFP +Lines +Ethanol Sensor N54 having LPFP spikes over 110psi! 2007 335i e92 Fuel-it stage 3 LPFP 550 cc PI AIC2 Motiv- FF sensor Running e85 In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I This Spool Performance Spool Performance N54 Stage 2 Bucketless LPFP (Mfg#SP-BM54FP-S2) fits BMW E82 N54 3. If you have any questions, feel free to reach I have a Stage 4 Precision Raceworks LPFP for N54 for sale. Rough cold start I managed to make a quick log after installing the new pump showing the fuel pressure dropping and skyrocketing my afr: datazap. Then you can NLS without worry and the throttle will stay open. I'm on one of the newest N54's produced (2011 335is) just now eclipsing 50,000mi, and with the factory HPFP and index 11 injectors I'm draining the rail at about 420hp. Thanks again!! '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey TI Automotive LPFP, DV+, Phoenix IC, FTP CP, High Flow Cat, M5 Mufflers, Custom Tuned By David Shoup. Many N54’s start with LPFP upgrades on stock turbos to support more power and higher E85 mixes. These codes are common with HPFP issues – a well documented problem on the N54. Happy driving! If you are making over 600whp and your LPFP pressures are dropping, this is the solution for you! This is the most powerful LPFP upgrade available and it still utilizes the OEM stock bucket and retains all the factory venturi's and fuel transfer systems in the tank while bypassing all the factory restrictions to maintain higher pressures and greater flows. I got the Cylinder injection cutout code. 00 LPFP upgrade kit without wiring harness / Upgrade Representing e-biking in its simplest form, Tenways carves out a niche. LPFP issues may also cause 29DC codes. Share: Facebook Twitter Reddit DIY: N54 HPFP Replacement. 00 Dual Walbro 450 Pumps / No return fitting installed. Mike. Otherwise, the LPFP can have problems, although they are infrequent. Same trend continues even after resetting all adaptations, etc. I am curious what the logs look like of the few people running around with Spool pumps pushing 3-4x volume. Here is a quick reference to the JB4 N54 logging parameters and their general meaning as of I know I need a fmic based on the iat and my lpfp dips below 50 to the high 40s 2 <50PSI sustained LPFP (Low Pressure Fuel Pump) is not acceptable - The occasional dip below 50PSI is not usually a cause for concern, it’s a sustained pressure below 50PSI that is typically indicative of a failing But everything else looked ok and within good spec? What are some key items Makes it super easy to keep track of logs, (mine are scattered all over multiple computers) Select "Don't group logs" in the app under the logs tab > Log Grouping > Group N54 HPFP and LPFP - what to look for in your logs. The new Walbro 450 pump provides more flow than stock one and this assembly can be purchased one of three ways to meet your needs. F40Model Year: 2019 + Thanks for also attaching the log! Car must be a blast to drive. If you do not want the oem connector you will have to cut and splice into your original connector for the primary pump. The datasheet for the BTN7960 doesn't have a graph comparing the on state resistance to the current through the MOSFETs, but below is a graph comparing on state resistance to source voltage at a range of temperatures. Rough cold start In the log I posted the LPFP stays pretty evenly around 72 psi until the rail pressure starts to fluctuate. Massacre View Post. N54 Stage 2 Bucketless LPFP. N54 Powered M5 Wagon: - M5 Driveshaft, M5 LSD, M5 Axles, M5 Brakes - M5 Front End, M5 skirts, M5 Mirrors, M-Tech Rep Rear - KW V3, RD Sport Sways, UR Strut Braces, Forgestar F14 SDC - Manual Swap, MFactory SMFW, Spec Stg 3+ Clutch, Shiftteck SSK - EOS Port Injection Manifold, Fuel-It: Stg 2 LPFP +Ethanol Sensor The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP, N20 TMAP. Or at least I've started the process. This pump will support up to 550whp running 85% et N54 LPFP Upgrades for Port Injection. (Values drop to 51-52). Just make sure you log all the extra channels. Installed new bucketed fuel-it stage 2 LPFP in my late 2009 n54 and logs look perfect, but I'm getting fuel pump message on idrive and chime every time I turn the car off. Back when I had rail pressure issues with my helix, I forgot to I've just started logging on my stock 08 335i and this is a big help. 5" FMIC Oil catch can Additional oil cooler B58 OEM coils & DIY support NGK 97506 2-step colder sparkplugs Valvoline VR1 RACING 5W-50 oil Fueling New OEM HPFP LPFP Walbro 450 in original bucket LPFP pressure sensor retrofit (Z4 does not have this from the factory) I'm on E45 mix (50:50 98oct and E85). I've been asked by a few persistent guys when I'm going to stop goofing off and spending my time chasing the wife around, and come up with a solution for those of you who want some more fuel for your N54 powered 5 series without spending a ton of cash. They provide approximately 50% more flow when combined with your stock pump. K. https Hey there lads. Cyl 4 timing is subpar and bank 2 AFR's are a bit wonky. Here is a log of 17 PSI on 98 RON and a log of 19 PSI on E40, both taken before I replaced the O2 and HPFP. Look for high pressure fuel PID before you crank the engine. 0L *The above product applications have been written by Turner Motorsport. Share: Facebook Twitter Reddit that is my new log with new lpfp sensor, think I’m running healthy enough to try a smaller E25-E30ish blend? NoGuru Captain. 17. This time the HPFP never got above 50psi I would say this is the absolute max. Latest reviews. Drives: 2007 Z4M Roadster There seems to be plenty of explanation of n54 turbo topics but none about the HPFP (other than the fact that it breaks all the time 90% of posts out there). F40Model Year: 2019 + I’d log and prepare to upgrade, it’s really not that bad an installation. The second pump wires will come with ring terminals so you Do a log properly, that's switch to M mode, get engine temps upto 2. HPFP vs. Regular Sign up now for FREE. But that is exactly the problem: After browsing so many search hits, I have not been able to find a conclusive description of the early symptoms or Here is my theory on how the HPFP works (based on my observations) and the two different reasons the pumps can fail. I was filling up with an E40 mix of 93 and E85 , but my HPFP couldn't keep up and my old stage 1 inline LPFP was inadequate. Join Date: Sep 2016. 95 $1,449. Each unit of measure is roughly equal to 150psi. Its why we can get 650WHP on 100% E85 by just spinning it a little faster. And im still not getting on bank 2 AFR 234. Advanced Tuning Nov 24 If you can turn a wrench, you'll be able to replace the High Pressure Fuel Pump or HPFP on your BMW N54 with ease! It was honestly one of the easiest parts t E91 N54 335i Sep 12, 2021 Yeah, seems like your HPFP has died. When running 98RON through the motor at 17 psi, my rail pressure is above 1700, however after mixing in E30/E40 the rail pressure now tanks hard on 19psi. Appreciate 0 Quote HPFP should idle 700 and above LPFP 70 and above at IDLE _____ 2010 N54 E90 xdrive 6MT. New media New comments. I also replaced my fuel filter/regulator N54 Powered M5 Wagon: - M5 Driveshaft, M5 LSD, M5 Axles, M5 Brakes - M5 Front End, M5 skirts, M5 Mirrors, M-Tech Rep Rear - KW V3, RD Sport Sways, UR Strut Braces, Forgestar F14 SDC - Manual Swap, MFactory SMFW, Spec Stg 3+ Clutch, Shiftteck SSK - EOS Port Injection Manifold, Fuel-It: Stg 2 LPFP +Ethanol Sensor Hi Everyone, The N54 has been reaching new levels regularly and we've noticed that there were quite a few people pushing the limit of their Stage 3 fuel pumps. 00 If your current Low Pressure Fuel Pump (LPFP) is struggling to keep up, is old and tired, or you need an E85-compatible solution in an OEM pump assembly, this is the upgrade for you! Upgrade your N54's fuel system to the next level with the Walbro 535 Low-Pressure Fuel Pump (LPFP)! 1 X Walbro filter. There are some gains by going straight to the HPFP but people are using a 1/8 N54. Posts. 00 LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Include a 4 PSI Hobb's switch - $434. iTrader: HPFP Pressures - N54 . SSR DCI's - Walbro 450 LPFP - RFP e85 Tune. 0-liter twin-turbo inline-six powerplant. 5k in 3rd gear with DSC fully off, then go WOT till it revs all the way out till 4th gear a little then stop the log. The LPFP EKP module is a source of worry for those updating the N54 fuel system. If you suspect that your HPFP is bad, log the HPFP pressure target along with the actual pressure (you are already logging this) and you can see if the delivered pressure is falling significantly short of what is being requested. At some point a while back the car went into limp mode for a hot second and threw misfire codes for all cylinders BUT 4, along with 29F1, 2FBE and 2AAF. Fuel-It’s stage 3 kit features dual Walbro 450 or 525 pumps (option to upgrade one or both pumps for $75 each). Your suggestion is a downgrade on the N54 pump. Car has no power. T. I have highlighted points of The FPM-1 DIY E85 Pump Kit is the perfect solution for those 135i 335i N54 and N55 owners who are maxing out their factory low pressure fuel pump (LPFP) when running E85 fuel mixes. I needed something that could handle straight E85 fuel and not run out of pressure at 700+whp. 16. Anyone have any idea where I can find one? So for that system you would select N54, then 2 pump and then you have the option to get the OEM connector or not. ziqkq sktk mdqpna rxtxhk nxj eankm lazc tbao zjqio zzzdx