2007 335i code 29f2

elig0nzal3z · 05-11-2013, 05:57 PM

so like title says i got this code the other day when i was racing a bike in 4th gear i WOT and at about 5,000 rpm boom like if i hit a wall then got the half engine light took it to a shop and they checked my pumps and said all was good but that my low pressure fuel system sensor seems to be a little glitchey does anyone have a DIY on changing the low pressure fuel sensor and the part # would be awesome to i looked online but no luck finding a DIY i would like to avoid paying labor at the shop if its a easy enough DIY.

boostaholic786 · 05-11-2013, 11:19 PM

It depends on what you consider easy... You do have to take off your intake manifold ect.. to get to it. Its directly under the intake manifold or almost directly under it so I know that has to come off. When I did my walnut shell blasting, Sammy told me to go ahead and get the LPFP sensor to just save the headache of taking off the intake manifold twice since you have to buy new gaskets everytime you take it off and put it back on regardless of how old they are.

xDABSx · 05-12-2013, 12:41 AM

http://forums.5series.net/diy-do-you...or-n54-124086/

I cleaned my valves the same time I changed the sensor. I used all the old gaskets and my car runs fine.

straightcashhomie · 05-12-2013, 08:45 AM

Are u modded? I had this issue only once with Jb4 upgraded my software and good ever since

Rosetta Stoned · 05-12-2013, 09:13 AM

Don't need to remove the intake manifold. Just have to remove the intake and charge pipe (edit: and throttle body). Sensor is about $100 and install takes 30 minutes. There's a good write up on here, do a search, just did this myself last week.

elig0nzal3z · 05-12-2013, 03:53 PM

Quote:

Originally Posted by straightcashhomie

Are u modded? I had this issue only once with Jb4 upgraded my software and good ever since

i have jb4 with just muffler delete and dci

straightcashhomie · 05-13-2013, 09:04 AM

Quote:

Originally Posted by elig0nzal3z

i have jb4 with just muffler delete and dci

u got usb? datalog it. and send it to Terry. or look at the fuel pump urself in the logs if its above 12s through the band ur fp is fine. if its low below 12s its time for ur hpfp. u on the latest version?

elig0nzal3z · 05-13-2013, 09:16 AM

Quote:

Originally Posted by straightcashhomie

u got usb? datalog it. and send it to Terry. or look at the fuel pump urself in the logs if its above 12s through the band ur fp is fine. if its low below 12s its time for ur hpfp. u on the latest version?

i had it checked at a shop alreadyand they said all pumps were fine that the only issue they noticed was the sensor.

kiteboy · 11-04-2013, 09:04 AM

I read that sometines the HP Pump is the cause of problem...if only code 29f2 ??

kiteboy · 11-21-2013, 03:41 AM

Yesterday i changed my HPFP and now ok no pb

Cold starting immediatly...

amr_e90 · 11-21-2013, 05:10 PM

Hpfp had this happen a month ago

05-11-2013, 05:57 PM	#1
elig0nzal3z Private First Class 7 Rep 160 Posts Drives: 2007 335i Join Date: Oct 2012 Location: tampa fl iTrader: (0) Garage List 2007 bmw 335i [0.00]	2007 335i code 29f2 so like title says i got this code the other day when i was racing a bike in 4th gear i WOT and at about 5,000 rpm boom like if i hit a wall then got the half engine light took it to a shop and they checked my pumps and said all was good but that my low pressure fuel system sensor seems to be a little glitchey does anyone have a DIY on changing the low pressure fuel sensor and the part # would be awesome to i looked online but no luck finding a DIY i would like to avoid paying labor at the shop if its a easy enough DIY. Last edited by elig0nzal3z; 05-11-2013 at 07:28 PM..
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05-11-2013, 11:19 PM	#2
boostaholic786 Captain 40 Rep 622 Posts Drives: E92 N54 with MHD Custom flash Join Date: Dec 2011 Location: Plano TX iTrader: (0)	It depends on what you consider easy... You do have to take off your intake manifold ect.. to get to it. Its directly under the intake manifold or almost directly under it so I know that has to come off. When I did my walnut shell blasting, Sammy told me to go ahead and get the LPFP sensor to just save the headache of taking off the intake manifold twice since you have to buy new gaskets everytime you take it off and put it back on regardless of how old they are. __________________ [SIZE="2"]Crimson Red E92 335i M-sport 6-speed with MHD custom stage 2+ flash only , 40% E85/93 mix,+ HRE P40S wheels, KW Clubsport, M3 sways,+BMW performance CF Mirrors, BMW Performance CF deck lid spoiler,+ CF interior trim, p3 vent boost gauge,+ LUX angel eyes (11.73@124mph on street tires)
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05-12-2013, 12:41 AM	#3
xDABSx Private First Class 11 Rep 136 Posts Drives: Sedona 135i,JB e92 335xi Join Date: Jun 2012 Location: 60430 - Chicago iTrader: (3)	http://forums.5series.net/diy-do-you...or-n54-124086/ I cleaned my valves the same time I changed the sensor. I used all the old gaskets and my car runs fine.
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05-12-2013, 08:45 AM	#4
straightcashhomie Lieutenant 76 Rep 590 Posts Drives: 335i Join Date: Aug 2012 Location: home iTrader: (1)	Are u modded? I had this issue only once with Jb4 upgraded my software and good ever since
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05-12-2013, 09:13 AM	#5
Rosetta Stoned Second Lieutenant 102 Rep 254 Posts Drives: 2022 M3, 2023 X3 Join Date: Sep 2009 Location: Denver CO iTrader: (2) Garage List 2023 BMW X3 M40i [0.00] 2022 BMW M3 Competi ... [0.00]	Don't need to remove the intake manifold. Just have to remove the intake and charge pipe (edit: and throttle body). Sensor is about $100 and install takes 30 minutes. There's a good write up on here, do a search, just did this myself last week. __________________ MINE: 2022 M3Cx, Sky Grey, Driv/Exec/Park/Laser 1/26 Ordered, 4/26 Prod, 5/4 Assembly, 5/9 Port, 7/11 Transit, 8/3 Port, 8/18 Dealer, 8/25 Delivered WIFE: 2023 x3 m40i
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11-04-2013, 09:04 AM	#9
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	I read that sometines the HP Pump is the cause of problem...if only code 29f2 ?? __________________ 335i Pack M Stage 2 BR Performance 403,5 hp 582n.m/Bilstein B14 pss/R&B PVC2 valve/K&N air filter/Spearco FMIC/pre cata empty/EBC Redstuff,aviation hose, BMW Performance exhaust, Charge pipe Evolution Racewerks, Forge DVs
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11-21-2013, 03:41 AM	#10
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	Yesterday i changed my HPFP and now ok no pb Cold starting immediatly...
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11-21-2013, 05:10 PM	#11
amr_e90 Captain 215 Rep 803 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	Hpfp had this happen a month ago __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
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