Apparently i am losing Fuel Pressure....

AU335 · 11-26-2008, 06:25 PM

Dropped my car off yesterday to get my HPFP and some other things checked out and just got a call saying that I am losing fuel pressure but they havent figured out if its from the High side or Low side...

Why should that matter? Shouldnt they replace the entire HPFP.... or is that what they would be doing anyways? Just alittle confused

rooster3.0 · 11-26-2008, 06:28 PM

Maybe it means they're not sure which pump is the problem. The HPFP or the inline pump in the rear of the car.

AU335 · 11-26-2008, 06:43 PM

Quote:

Originally Posted by rooster3.0

Maybe it means they're not sure which pump is the problem. The HPFP or the inline pump in the rear of the car.

hmm... that makes sense i guess.

5soko · 11-26-2008, 07:14 PM

What was the P/N for the last HPFP they replaced? IF i remember correctly, there is a generation 3 pump out which is not refurb. which works well and doesnt fail. Just curious.

Sucks to see it happening again, hopefully bmw is doing it right this time around.

oddjob2021 · 11-26-2008, 11:58 PM

was in the same boat a week ago, i just recently also replaced my hp fuel pump. the limps i was getting at fixx fest back in October were insufficient fuel pressure. so i changed the pump and so far no limps.

but then again it only seems to limp at the tracks, which i guess is a good thing lol..

Vince@ V K Motorwerks · 11-27-2008, 12:14 AM

Quote:

Originally Posted by oddjob2021

was in the same boat a week ago, i just recently also replaced my hp fuel pump. the limps i was getting at fixx fest back in October were insufficient fuel pressure. so i changed the pump and so far no limps.

but then again it only seems to limp at the tracks, which i guess is a good thing lol..

Ummm...not really. Throw in some 100 oct. If your leaning out at least you wont end up in my situation with a detonated cylinder.

oddjob2021 · 11-27-2008, 01:26 PM

Quote:

Originally Posted by Vince@ V K Motorwerks

Ummm...not really. Throw in some 100 oct. If your leaning out at least you wont end up in my situation with a detonated cylinder.

maybe you're right, also this gives me the chance to run a great time next time. all of the high speed runs are on race gas no? and a race map? ill go w/o the race map but allow the ecu to adjust timing

P.S> sorry for thread jack AU335, but this is good info anyway no?

cn555ic · 11-27-2008, 01:42 PM

wow isn't this like your second time with fuel pump problems!! I hope you get it fixed!

bmwturbopower · 11-27-2008, 03:54 PM

Maybe we should just tell bmw to give you a new car koy. they obviously gave you the in reliable one

Sniz · 11-27-2008, 09:20 PM

AU, sorry to hear your having problems again.

XLR8MF · 11-27-2008, 10:57 PM

Yeah, sorry for your troubles. Don't take crap from them, make them fix it.

AU335 · 11-28-2008, 01:34 PM

A little UPDATE:

Found out to be the Low Pressure Fuel Pump. So does that mean my HPFP is okay and doesnt need to be replaced also at the same time?

11-26-2008, 06:25 PM	#1
AU335 Colonel 198 Rep 2,443 Posts Drives: 2007 e92 335i Join Date: Mar 2007 Location: Southeast iTrader: (7) Garage List 2007 335i [0.00]	Apparently i am losing Fuel Pressure.... Dropped my car off yesterday to get my HPFP and some other things checked out and just got a call saying that I am losing fuel pressure but they havent figured out if its from the High side or Low side... Why should that matter? Shouldnt they replace the entire HPFP.... or is that what they would be doing anyways? Just alittle confused
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11-26-2008, 06:28 PM	#2
rooster3.0 Major 27 Rep 1,306 Posts Drives: E92 335i Join Date: Nov 2006 Location: Jersey iTrader: (4)	Maybe it means they're not sure which pump is the problem. The HPFP or the inline pump in the rear of the car.
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11-26-2008, 07:14 PM	#4
5soko Brigadier General 350 Rep 4,633 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	What was the P/N for the last HPFP they replaced? IF i remember correctly, there is a generation 3 pump out which is not refurb. which works well and doesnt fail. Just curious. Sucks to see it happening again, hopefully bmw is doing it right this time around.
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11-26-2008, 11:58 PM	#5
oddjob2021 ASR Turbos+LSD+Meth= :D 79 Rep 1,517 Posts Drives: E92 335i Join Date: May 2007 Location: Miami, FL iTrader: (0) Garage List 2007 E92 335i [0.00]	was in the same boat a week ago, i just recently also replaced my hp fuel pump. the limps i was getting at fixx fest back in October were insufficient fuel pressure. so i changed the pump and so far no limps. but then again it only seems to limp at the tracks, which i guess is a good thing lol.. __________________ 2007 335i Coupe Mods: Check the Garage
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11-27-2008, 01:42 PM	#8
cn555ic 460 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	wow isn't this like your second time with fuel pump problems!! I hope you get it fixed!
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11-27-2008, 03:54 PM	#9
bmwturbopower Captain 321 Rep 657 Posts Drives: 08' E92 335i Join Date: Apr 2008 Location: Atlanta, GA iTrader: (8)	Maybe we should just tell bmw to give you a new car koy. they obviously gave you the in reliable one __________________ /// E92 \| JB4 \| UR DP \| BMS DCI \| H&R \| LC Z2S \|
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11-27-2008, 09:20 PM	#10
Sniz Lieutenant General 680 Rep 10,584 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	AU, sorry to hear your having problems again. __________________
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11-27-2008, 10:57 PM	#11
XLR8MF Captain 28 Rep 631 Posts Drives: 335i sedan 2008 Join Date: Oct 2007 Location: Mesa iTrader: (6)	Yeah, sorry for your troubles. Don't take crap from them, make them fix it.
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11-28-2008, 01:34 PM	#12
AU335 Colonel 198 Rep 2,443 Posts Drives: 2007 e92 335i Join Date: Mar 2007 Location: Southeast iTrader: (7) Garage List 2007 335i [0.00]	A little UPDATE: Found out to be the Low Pressure Fuel Pump. So does that mean my HPFP is okay and doesnt need to be replaced also at the same time?
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