An Important Update For Your N54 Low Pressure Fuel Sensor
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- Опубликовано: 7 сен 2024
- In this video we discuss the updated low pressure fuel sensor for the N54. I upgraded to the newer style sensor a couple years back and eventually developed a fuel leak.
Instead of upgrading to the newer fuel line that is compatible with this sensor they now offer an adapter to make this all work. That is what this video is about.
If you are interested in purchasing the adapter and o-ring you can get them here (affiliate):
bit.ly/2XeRPo7
and
bit.ly/2Pgq8qx
You can also purchase the newer style sensor if yours has failed here (affiliate):
bit.ly/2Db8QbI
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Thanks man, I was replaced the sensor and the new one had the updated fitting. I thought It was the wrong sensor. But after the vid I understand now
Best N54 content on RUclips! Thank you!
Took care of this sensor today along with my alternator voltage regulator. I took advantage and cleaned my throttle body while it was uninstalled. Really appreciate the great content
Your the n54 yoda🙏🙏🙏 we need a channel specifically dedicated to N54 maintenance and education! One big fam ! Keep going!!!
Thanks for keeping the N54 content going
For sure, I'm keeping it for the foreseeable future.
I love the n54 content man... really do!
I'm literally in the process of swapping this out of an N63 engine, it is a real pain in the ass to get to! I'm glad the N54's are much easier to work on compared to the TT V8's.
Simplicity and a ton of great vids on his channel. Thank you again.
Thank you sir! Perfect timing on this video. I'm in the early stages of prepping for a N54 turbos replacement project. My '09 135i has about 82K miles on the clock, so trying to rationally replace wearable parts as I can afford. Thanks to you I just hit up ECS Tuning for a new LP sensor/adapter kit. Really appreciate you!
I questioned myself the reasons your channel does not have the number of followers it deserves. Maybe you go straight to the point focusing on BMW mechanics instead of spending time showing yourself. Just continue like that, it is to my taste, your channel is a must for N54 owners.
Thank for your DIY's they helped me a lot. With your videos working on N54 is so easy. Cheers!
Wow thanks, was planning on swapping the sensor in a few days, just ordered both the adapter and O ring, good stuff👍
It really is bizzare that 15 years after its release BMW is still working on sorting out the defects on the N54 engine.
I replaced the low pressure fuel sensor with an OEM when I had my engine rebuilt. However, I didn't have any problems with fuel leak before either.
They used the N54 up until 2016, so it makes sense there's still warranties out there for N54s.
n54 is the beta test for all of the current turbo inline 6 bmw engines. they can test stuff on the n54 market and then engineer it into the new stuff. thats why the b58 is so badass it took 3 tries.
i've change mine 3 days back..follow you previous tutorial..thanks man
Just replaced my lpfp sensor with oem since I didn't want to spend extra to upgrade the line. Good info for next time!
Thanks for the update, ordering the parts now!
Guys just upgrade to the new setup with just buying the adapter all your doing is turning the new sensor into the old failing style sensor I know it’s more expensive for the whole set up but with these cars it’s just best to do it the “right” way.
Agree, you can purchase the low P line segment with new style sensor (part #13537622751) for about $189 (FCP). I did that in November, no problems.
Thank you for the update! Followed the original video and will update my car with this now
Great vid, thanks a ton for your content...much appreciation from a fellow Canadian in the US.
Live your videos bro they are so helpful thanks for making them !
Keep up n54 content please😁
Thanks for bringing us yet another vibe 🥂 enjoyed
Excellent recommendation! Just upgraded mine.
I just recently changed this sensor and line
Great tip. Thanks for this! Regards, Nico
Great update keep the content going
n 54 rocks keep it up!
Great video. Love your detailed content. I have a question. I replaced the low pressure sensor with this style & now my car is in limp mode. Any ideas why & what could/can I do to fix it. Thank you
@vehiculardiy Did your "system A too lean at idle(Bank 1)" code clear after changing this? I know my sensor is bad and I need to pass inspection but that code keeps coming back up. A/F for both banks is good and mine is tuned as well. I saw you had this code as well before you changed your lpfp. Big fan of the channel! Thanks!
Hello when you said vibrating from lpfp I think I’m going through that exact issue I accelerate and I don’t have full power and when I try to floor it it almost like the engine shakes while
Accelerating and doesn’t go into full performance, also got 2AAF code
How would you know you need to replace it? Does it throw a code or does it have some kind of erratic behavior.
I wish you guys would actually start the videos with the symptoms first so we can get an idea if we have the same issue with the cars.
He said... he had fuel leak. If you need to replace fuel sensor itself you will get P29F3 code.
Oh. You’ll know. Your car shuts off and they you get a Christmas tree worth of lights and the code they say here but you need the obd reader. The user code is a ccid-121 at least for me.
Great clip! Thx. No need to remove the manifold? Have a 135i vs 335I so maybe to tight? Also getting the code but it runs fine? Leave it be instead?
can you let me know if it worked for you? i have a 135i and noticed it says the adapter is only for the M3/4/5 etc
I'm a little confused you said the original flat sensor would vibrate so the changed design. Then you put the cone one into a flat one that vibrates?
YEAR, MAKE and Model please. I have the 2011 X3M and the engine is totally different!
I love the way bmw look. As a honda owner, I don't understand why these cars need upgrades and have so many recalls just to run the car for daily driving. How hard is it to have a car drive 100k when normally worn parts.
My n54 has 210k miles on it. I only changed the water pump. Not all are lemons. Most people just abuse them. They run on higher temps than most cars and if you abuse it things break down.
I always warm up my car before I drive it.
Because these cars are built with performance in mind originally and less longevity. People who can afford these vehicles will often swap to the latest ones anyways rather than paying for a Honda or a Toyota that's going to last for years, but have way less performance. You boost a civic to 300+ Hp suddenly it's longevity is hindered. You gotta pay to play.
@@anthonywright5275 Yea, I guess I hear the stories of the people who want to look rich with a used BMW.
@@NeoAndersonReloaded I am not rich by any means. I am mechanically inclined and can rebuild an engine if I have to. I bought mine because of the ride quality and performance.
I couldn't care less what people think when I drive it. Besides where I drive it it does not have the rich status as in other places.
A used 335i is strictly for performance.
@@NeoAndersonReloaded lol nah... even if someone has a used bmw, if it's running, trust me, they got money... they eat money in maintenance and repairs. But yeah like 67re said, the 335 is more of a luxury modern tuner. And if you are mechanically inclined, it is an ultimate driving machine. Full bolt ons will have you walking GTs, a turbo swap and you'll have exotic owners pissed.
Hey I wanted to know does the adapter work for 2010 335i because when i clicked the link it showed it’s for a m3? Did u get the same result
Checking the ECS site and BMW - they state this BMW only fits the M series. Any thoughts on this prior to me ordering?
Great content as always. I have a jb4 custom e60 backend flashed fbo plus inlets 2011 335is and in higher boost maps, when I gas it wot from higher rpms (4k for example), the car stutters almost like fuel is being cut off. Im changing my hpfp, but I want to see if you knew when BMW started putting the updated low pressure fuel sensor into the N54, that way I dont order it if its already in the car.
Thanks, I'm not sure but you might be able to sneak your phone under the intake manifold and get a quick video of the sensor. If it's bronze looking it's the older one, if it's silver it's the new one.
@@VehicularDIY Thanks. Car is not throwing any codes, but the HPFP is an older model and logging does show it dipping below 10. Ill go ahead and do that and check the color. Thanks again I appreciate it.
Just doing mine now and it has the old style sensor I have a '11 335is also. I thought the fuel line would've been upgraded but I guess not. Now I'm waiting for the adapter before reassembling everything.
Did the sensor fix car stuttering at wot?
@@Salvnyc_ I went ahead and added both. Problem solved.
Can a failure of this sensor catastrophically destroy the engine? Was reading about a user who posted this problem and said that the failure led to diesel going into the ecu. 32000dollar repair cost
All the websites that list the adapter say it doesn’t fit for my n54 535i…
doing this on my s63 motor do i put an o ring on the new sensor as well ? and the adapter ?
I saw another video that just installed the new style sensor and said to myself "that's gonna start a fire".... glad to see they came up with an adaptor. Thanks for posting the part numbers, but I can't buy anything from ECS....they are just FUBAR. SETUP an Amazon link!
Hi I’m getting a 2AAF code could this be due to the sensor ? How can I check and be sure ?
Wish this video was posted two days earlier so I didnt order the wrong sensor 😂🤦♂️
On ECS tuning they state that this adapter doesn't fit the n54 should i order it with this sensor?
Feel like I need to do this to the e92 m3
I just changed my lpfp a second time and upgraded to a walbro 450 but my lpfp is reading 48psi still. same as when i had my 255 on. Is there a way to test the sensor or top hat? thanks!
Did you find a solution to the problem?
hey hope youre doing well, ive got a quick question. i recently just did the low fuel pressure sensor upgrade and i noticed my fuel pressure sensor cable is corroded. Where can i go to purchase a new one?
Great video. I have a question for you. What's a good site that shows every part you can upgrade on your bmw? I seen a site like that but forgot what it was. It told me everything that has a upgraded part.
I was wondering if I purchase the sensor do I need the adapter as well or I do not need it?
Is it okay if i put an o ring on the sensor to fitting and fitting to line ? I wanted to be extra careful
Thanks for the detailed content you put out. My 2008 535xi has the surging (push pull effect) issue under light throttle (2k - 4k rpms), it is pronounced in M2. I did the sensor upgrade, it did not eliminate the surging but the characteristic of the surge has changed, it stays longer and a bit more pronounced. Is this (surging issue) indicative of fuel pressure related, could it be the lpfp? Already rebuilt the transmission, changed spark plugs/coils, valve cover, reset all modules using INPA, no luck. Any advise?
Following up. Any update on what caused your surging?
Seems like this is one of the most mysterious issues with the N54. Did you find a solution?
Just throwing out an update. I did a new HPFP and my surging went away. I have new cold plugs I am putting in. They’re Bosch ZGR6STE2.
Hey I just got code 29F3: Fuel low-pressure sensor, electric
Do I buy this kit ?
what are the benefits if i have no faults?
Resetting adaptations needed for this?
I am about to replace this on my 07 n54, is there a particular reason you chose to do the new style sensor and adapter instead of just repling with the old style? The old style is still available, but no one seems to be using it and I can't figure out why. Id rather not have to use an adapter if i don't have to
What sensor did you go with? I just bought a new HPFP and what I thought was the low pressure sensor but it turns out to be this new style and it’s actually a “high pressure fuel sensor” that’s goes on the fuel rail up top not at the bottom. So I just ordered the old
Style bronze colored “low” pressure sensor that goes there. Looks like people are using the “high” pressure sensor as a “low pressure” sensor with an adapter. I’m gonna change them all.
I bought the $150 upgraded fuel line and sensor. My code went away but don't see the need for the new fuel line. Looks identical.
The part where the sensor screws in didn't look any different on the new line?
@@VehicularDIY No. Everything looks identical. Thought it would have some antivibration connection or something. But nothing. Just needed the sensor and would have saved $120. But it did come with the newer sensor already installed. So maybe I would have noticed something in the threads if it was separate. And the bottom of the new sensor is flush with the fuel line threads. No adapter in between.
@@TheFrenchPug Is it possible that your line had already been replaced with the upgraded part? Mine hasn't been refreshed, and I am seriously on the fence about whether to use the adapter and new sensor as per this video, or replace the whole line like you did.
@@forcedinducti0n after swapping it out I could not tell any differences in the fuel line. I didn't see any vibration protection on either one. All I feel I did was spend more money for nothing. The biggest difference has been putting in the $1400 index 12 injectors.
@@TheFrenchPug Lol classic..."yeah, we made it better...buy, buy, buy!!!". I guess it's possible that it had already been swapped in the past. I also didn't see much of a difference, so I went with the sensor-only. Thanks for the insight :).
Hey man, You mentioned that without a lpf sensor it wouldn't throw an SEL. My sel is on and when pulling the code all i'm getting is 29f3. Any idea what could be throwing the SEL light? I was going to replace the sensor but after watching your vid, I'm stumped. BTW, the car runs great right now tho.
So you have a check engine light lit up and only that code is showing?
@@VehicularDIY correct only code. I was doing some research and maybe it might be the fuel feed line? Does that make sense to throw the 29f3 code?
Would a bad low pressure fuel pump sensor cause an N54 powered E?60 not turn over and turn on
Bump! Wondering the same. Have an LCI E60 N54 and intermittently getting a 29DC code where the car goes into limp mode and restarts only after being switched off for >10 mins. Not sure if this is the root cause or should I bite the bullet on a new HPFP.
@@sharathprabhakar9195 I’ve already replaced the EKPM3 and coded it, installed a new battery and fuel pump assembly and nothing.
Over the weekend I realized that the fuel pump itself is starving itself for fuel, the filter has never been replaced to my knowledge and the filter is an in-tank filter and has a built in Fuel Pressure Regulator, so I’m wondering if that’s the problem.
The car won’t run unless it has more than quarter tank of fuel. The fuel tank had gas up to the rim on the driverside where the filter goes, so I removed the assembly and figured out that the pump works and sends fuel.
Now after looking at the gas tank, I realized that the fuel pump had no fuel to send because the fuel pump side (passenger) had no fuel in it. I used a cheap transfer pump from harbor freight to move gas from one side to the other, I reinstalled the fuel pump assembly and supposed bad filter and the car turned on and ran for the first time in 5 months.
I’m not at all sure what’s actually wrong, if it’s the pump or filter itself but I’ve bought the cheaper of the two and opted for the filter since that is the odd man out. Fuel pump assembly is new, battery is new, and after transferring fuel to the pump side of the gas tank and having it run with 0 issues for 35 minutes, that means the HPFP and Injectors all work as intended. If the filter doesn’t fix my problem, then chances are I have a faulty LPFP that I can warranty through FCPEuro.
The only thing to never be addressed is the filter so, I’m hoping for a miracle since I’m trying to sell this 2010 535xdrive, Alpine/Peanut Butter with only 132k miles.
Pray for me 😅🫣
Question is it ok for the fuel low pressure sensor psi to read at 85.2 psi at ide , started happening when I did a walboro 450 upgrade?
Yeah, that's nice and healthy.
Ok thank u am a huge fan and alway watch your vids when doing my upgrade 🙏 keep doing the good work.
Anybody know why mhd doesnt show LFPS module for the n55, I'm at 140k 335i was gonna swap the hpfp and sensor! Does the n55 have a low pressure sensor?
BUMP!!
I have more of a general question: does this type of upgrade even exist for the N55?
FANTASTIC content man! Keep it upppp!!! 😎
They removed the sensor on the N55, a lot of newer direct injection turbo cars don't have a low pressure sensor. They derive the value on the high side.
Hey how is the helix overdrive treating you? I keep seeing alot of guys saying to stay away from it and get port injection, because their helix keeps failing.
It's holding up so far. Oh yeah do you have any thread you can link to where they are saying it fails?
@@VehicularDIY All the comments are in the bmw facebook groups that I'm in. I was on the fence between the two because I'm looking to upgrade my 335i for more power
Do you suggest to unplug battery before replacing the sensor?
Yes as the fuel pump periodically cycles.
Thank you for your response. I’ll be changing it this weekend. Great video.
I understand the principle, but haven't you just added more places to develop a leak? Normally simplicity is better. I usually would just use a little Permetex PST.
The upgraded fuel sensor fits into that adapter in a more secure way. They mate like an AN fitting. Is Permetex PST fuel resistant?
@@VehicularDIY Yes. A primer may be needed for stainless and galvanized Steels.
Could this sensor going bad cause misfires?
No I wouldn't say so.
At the same time, owning other brands of vehicles, it seems extremely strange to change a sensor every 2-3 years. That's totally unacceptable and obviously a badly designed sensor. It should last 10-20 years at least. Just look at other sensors with that measuring range 0-10 bar.
I've recently changed mine on my N53 as it was dead and now the pressure sometimes fluctuates between 2,4 - 10 bar. Highly unreliable. Either the sensor or unreliable pump regulation.... electronic PWM pump. Christ!
But something that you all need to understand. A unit that is firmly screwed onto a metal line on the engine will ALWAYS vibrate in line with the engine. It doesn't matter if it's put 1cm - 50 away. It will still be mounted on a firm metal that is coupled with the engine. Period.
So, vibration is NOT the reason to put that sensor there. It's the fitting that they need to get straight.
Good video though and keep up the good work.
Hello, I already bought and installed the new bosch sensor and the problem continues to come up with the same 2AAF code, any advice?