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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Engine light popped up, hooked up the bavtool and it showed these codes...??



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      07-20-2009, 09:34 PM   #1
Malaka1
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Engine light popped up, hooked up the bavtool and it showed these codes...??

29CD:
29CD Misfirings, cylinder 1
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Event 1
Odometer 29320kms 18218miles
Engine temperature 68.25 C
load value for misfire detection 33.98 %
Engine speed 928.00 rpm
Lambda integrator group 1 -2.34 %


29D9:
29D9 Misfirings in case of tank filling level too low
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Event 1
Odometer 29320kms 18218miles
rail pressure 51,623.67 hPa
counter recognition bad road 0.00 -
ambient pressure 997.66 hPa
fuel tank filling level 7.00 l


A10A
EWS4 timing challenge/response error
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold




My only mods done are JB+ 100% w/ solenoid bypass, DCI, UUC RSC335 exhaust.
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      07-20-2009, 10:17 PM   #2
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HPFP for sure...... event 1 and 29D9 points to your a/f ratio running very lean...unless u want to replace ur engine block..i highly recommend u dont drive it until u get it replaced
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      07-21-2009, 12:27 AM   #3
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Damn, well I didnt think about it at the time and I cleared all the codes..I thought they may have been triggered by the JB+ so I didnt want the dealer to see them. So what do you think I can say to the dealer now to have them replace my HPFP?
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      07-21-2009, 12:49 AM   #4
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were any of these codes tuner codes? the first two deal with fuel pump correct?
Quote:
Originally Posted by YellowFinger View Post
HPFP for sure...... event 1 and 29D9 points to your a/f ratio running very lean...unless u want to replace ur engine block..i highly recommend u dont drive it until u get it replaced
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      07-21-2009, 07:53 AM   #5
Alan l.
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a bad hpfp would prolly explain your dyno results too. I'd take out the jb+ and bring it to the dealer about the car not starting or takes a long time to start. I def. wouldn't beat on it until its fixed.
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      07-21-2009, 08:11 AM   #6
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I wouldn't say HPFP for sure - there are no 2FBF codes which are usually associated with the fuel pump failing. It looks like cylinder 1 may have a bad plug or bad coil and is misfiring, could also be bad gas.

The 29D9 is an odd one that isn't reported too much - did you have a really low tank of gas recently, can't find an explanation for that code anywhere.
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      07-21-2009, 08:19 AM   #7
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Also doesn't setting the jb+ to max potentially trigger codes?
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      07-21-2009, 08:59 AM   #8
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yes, max settings can trigger tuner codes
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      07-21-2009, 09:11 AM   #9
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Whats up man, you going to have to think carefully what malakies you going to tell them. Start by saying the car wont start and it keeps having to crank irregularly. If they chase you away then wait for the codes to pop up and take it in. There is a chance that the fuel pump in the tank is faulty and not the HPFP that sits in the front.
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      07-21-2009, 09:24 AM   #10
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low in fuel?
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      07-21-2009, 11:02 AM   #11
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I'd start with the simplest, cheapest fix, which is the spark plugs. Change the cylinder 1 plugs with fresh ones and see if the problem persists. If so, then switch the coils from cylinder 1 to 2 to see if the problem follows to the new cylinder or it stays.

If it stays the same no matter what you do, then it can be either the HPFP or the injector.
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      07-21-2009, 12:26 PM   #12
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I believe another HPFP is P3090, which you don't appear to have.... yet.
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      07-30-2009, 11:17 AM   #13
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what ever happened with this
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      07-30-2009, 12:50 PM   #14
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eisei ellinas malaka?
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      07-30-2009, 02:16 PM   #15
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Quote:
Originally Posted by dpavlakos91 View Post
eisei ellinas malaka?
Malon einai, alla edo stin Notia Afriki exo gnorisou arketous dopious me tetio epitheto.
Yiasou patrida.
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09 C63
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