Low fuel pressure sensor or hpfp failure help!?

sillygoat · 08-26-2009, 04:49 AM

Hey guys

I have a 2007 e92 with 53k miles and my car is having long cranks in the morning and after 8 hours of work. I brought my car to the dealership and they said the low fuel pressure sensor is messed up and they're blaming it on my bms dual cone intake. it doesn't really matter because I'm out of warranty but they want $500 to replace it. I believe it is the high pressure fuel pump giving up which has an extended warranty due to it's problems. I think the sensor is only $70 and it's easy to replace but it'll be a waste of money if the problem is the hpfp. Anyone have the same problem or any suggestions?

Thanks

fv17 · 08-26-2009, 07:40 AM

While the HPFP is the likely culprit, there is no way for you to know for sure. If you do not trust what they are telling you then take it to another shop to get checked....

JoeyBananaz18 · 08-26-2009, 09:13 AM

go for a second opinion

07-335XI · 08-26-2009, 09:50 AM

They might just be saying that the BMS filters are causing the "low pressure sensor", Remember your fuel pump is warrantied till 100K so that can give them an excuse to not change your HPFP.

Perfectus · 08-26-2009, 09:50 AM

Check out this thread...http://www.e90post.com/forums/showthread.php?t=294057

It's regarding that sensor and the HPFP.

02themax · 08-26-2009, 10:11 AM

I had the exact same symtoms, the car would only have long cranks in the morning but was fine once warmed up. However the culprit was still the HPFP, had it replaced and all is back to normal. HTH

sillygoat · 08-26-2009, 11:08 AM

Quote:

Originally Posted by Perfectus

Check out this thread...http://www.e90post.com/forums/showthread.php?t=294057

It's regarding that sensor and the HPFP.

I was just reading this.. So I guess the sensors might be the problem. But did anyone just get their sensor replaced without a hpfp replacement to fix the long cranks?

08-26-2009, 04:49 AM	#1
sillygoat Captain 60 Rep 804 Posts Drives: 335i tiag Join Date: May 2006 Location: las vegas, nv iTrader: (11)	Low fuel pressure sensor or hpfp failure help!? Hey guys I have a 2007 e92 with 53k miles and my car is having long cranks in the morning and after 8 hours of work. I brought my car to the dealership and they said the low fuel pressure sensor is messed up and they're blaming it on my bms dual cone intake. it doesn't really matter because I'm out of warranty but they want $500 to replace it. I believe it is the high pressure fuel pump giving up which has an extended warranty due to it's problems. I think the sensor is only $70 and it's easy to replace but it'll be a waste of money if the problem is the hpfp. Anyone have the same problem or any suggestions? Thanks __________________
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08-26-2009, 07:40 AM	#2
fv17 Private 1 Rep 74 Posts Drives: 07 335i Sedan 6MT Join Date: Mar 2007 Location: MI iTrader: (1)	While the HPFP is the likely culprit, there is no way for you to know for sure. If you do not trust what they are telling you then take it to another shop to get checked.... __________________ 07 335i Sedan 6MT 08 VW Touareg V6 02 Audi A4 1.8TQM (Sold), 03 Infiniti G35 Coupe 6MT (Sold), 01 VW Jetta Wolfsburgh (Sold), 99 Ford Escort (Sold), 97 VW Jetta GLX (Sold), 88 Mazda RX7 (Sold), 85 VW Golf (Stolen).
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08-26-2009, 09:13 AM	#3
JoeyBananaz18 Brigadier General 398 Rep 4,084 Posts Drives: metrocard Join Date: May 2009 Location: Whitestone, NY iTrader: (3)	go for a second opinion __________________ 7/18/09- I pick up my baby- 2009 E92 335i Xdrive, Space Gray over Coral Red. Premium Pkg, Cold Weather Pkg, M-Sport Pkg, 193Ms, Gloss Black grills, Custom Gloss Black Mirrors, Performance shift and E-brake boot, M3 spoiler, Euro fog switch, gloss black interior tim, Coco-Mats (red/black), H&R coilovers, 19'' Alufelgen SF-71s......
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08-26-2009, 09:50 AM	#4
07-335XI Second Lieutenant 10 Rep 293 Posts Drives: M3 Join Date: Nov 2007 Location: bcdefghijklmnopqrstuwxyz iTrader: (5)	They might just be saying that the BMS filters are causing the "low pressure sensor", Remember your fuel pump is warrantied till 100K so that can give them an excuse to not change your HPFP.
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08-26-2009, 09:50 AM	#5
Perfectus Major 35 Rep 1,252 Posts Drives: e92 335i/F10 528XI Join Date: Jun 2009 Location: NOVA/MD iTrader: (10)	Check out this thread...http://www.e90post.com/forums/showthread.php?t=294057 It's regarding that sensor and the HPFP. __________________ 2012 528XI Saphire Black Stock for now 2007 e92 335i - Monaco Blue Injen DCI w/ Cyba Scoop - M-Tech Rear - ///M3 Rear Lip Spoiler - ///M5 SMG Shift Knob & iDrive Knob - BMW Performance Hand Brake - BMWCCA Member
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08-26-2009, 10:11 AM	#6
02themax Captain 28 Rep 946 Posts Drives: E90 335i Join Date: Apr 2008 Location: Calgary, AB iTrader: (6)	I had the exact same symtoms, the car would only have long cranks in the morning but was fine once warmed up. However the culprit was still the HPFP, had it replaced and all is back to normal. HTH __________________ E90 335i Sport Package - Logic 7 Sound w/ipod - Bluetooth - Comfort Access - PDC - 19" M3 Reps 275/30 235/35 - Blacklines - 10mil spacers rear, 5mil spacers front - BMW Alarm
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