SES light, Misfires and bucking..

SouthfloridaE92 · 12-15-2011, 11:21 PM

My SES light has came up a few times previously while on higher boost (map 2 on jb4) and when I pull or lug my car around in low rpms.. Some syndromes that have been happening are bucking, rpms drop at idle below normal, and loss of power.. And I got 3 codes thrown 29D9, 29CF, 29F3.. One was a misfire code and others fueling, anyone got an idea of whats wrong? I have 27k miles on the car as is and had my low pressure pump replaced recently too.. Spark plugs, coils, injectors or what ? Bad vanos or leak in charge pipe..

Longboarder · 12-15-2011, 11:49 PM

Did you use the right firmware? Same thing happened with my Procede once when I uploaded a map that needed different firmware.

SouthfloridaE92 · 12-16-2011, 10:30 AM

Really? You think that would be the problem? Not a fueling issue?

Crazylegs · 12-16-2011, 11:32 AM

Quote:

Originally Posted by SouthfloridaE92

My SES light has came up a few times previously while on higher boost (map 2 on jb4) and when I pull or lug my car around in low rpms.. Some syndromes that have been happening are bucking, rpms drop at idle below normal, and loss of power.. And I got 3 codes thrown 29D9, 29CF, 29F3.. One was a misfire code and others fueling, anyone got an idea of whats wrong? I have 27k miles on the car as is and had my low pressure pump replaced recently too.. Spark plugs, coils, injectors or what ? Bad vanos or leak in charge pipe..

i had similar problems but I'm running v5 pretty sure it'll be same solution.
check plugs usual culprit or if not plugs check coils. then afterwards reset cars adaptations.

Crazylegs · 12-16-2011, 11:34 AM

i had the same codes also it was misfire cylinder 4, and fuel pressure/ fuel rail. for me was a plug

Longboarder · 12-16-2011, 12:10 PM

Quote:

Originally Posted by SouthfloridaE92

Really? You think that would be the problem? Not a fueling issue?

It could be. The symptoms sound exactly what was happening to my car. Interesting what a couple misplaced zero's and one's will do!

Just try that first since it's easy and free.

12-15-2011, 11:21 PM	#1
SouthfloridaE92 Second Lieutenant 14 Rep 252 Posts Drives: 2011 Black e92 335i 6MT Join Date: Aug 2011 Location: Fort lauderdale iTrader: (2)	SES light, Misfires and bucking.. My SES light has came up a few times previously while on higher boost (map 2 on jb4) and when I pull or lug my car around in low rpms.. Some syndromes that have been happening are bucking, rpms drop at idle below normal, and loss of power.. And I got 3 codes thrown 29D9, 29CF, 29F3.. One was a misfire code and others fueling, anyone got an idea of whats wrong? I have 27k miles on the car as is and had my low pressure pump replaced recently too.. Spark plugs, coils, injectors or what ? Bad vanos or leak in charge pipe..
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12-15-2011, 11:49 PM	#2
Longboarder Major General 3431 Rep 6,771 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	Did you use the right firmware? Same thing happened with my Procede once when I uploaded a map that needed different firmware. __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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12-16-2011, 10:30 AM	#3
SouthfloridaE92 Second Lieutenant 14 Rep 252 Posts Drives: 2011 Black e92 335i 6MT Join Date: Aug 2011 Location: Fort lauderdale iTrader: (2)	Really? You think that would be the problem? Not a fueling issue?
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12-16-2011, 11:34 AM	#5
Crazylegs Lieutenant 15 Rep 447 Posts Drives: 08 Black on Red 335I Join Date: May 2011 Location: South Florida iTrader: (1)	i had the same codes also it was misfire cylinder 4, and fuel pressure/ fuel rail. for me was a plug
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