[utkarsh436]

Hey everyone so i know this topic has probably talked to death about but i am having an issue with my 2009 335i 6 m/t where on a cold start the engine misfires for at most 2 mins and then is completely smooth afterwards. These are the codes i have thrown so far 29cd 29d1 29ce 29cc 29d2 29d9

Some background on the car i bought it with 88k has about 89.7k on it and i have replaced all 6 injectors with index 12's. it has brand new ngk 95770 gapped to 0.22 and a new valve cover gasket on it. The car never seems to lose any power when im on the gas hard on the highway ever. It seems to only misfire when the engine is completely cold and starts up.

Im not sure if this could be a cause or if it makes sense but could my hpfp not be providing the car with the proper fuel pressure on start up? just a thought

Any help for this would be great Thanks!

[asiflicious]

Leaky injectors or valve cover gasket maybe

[utkarsh436]

Hmm but I just replaced them both with with brand new ones

[Kev0]

Was the new injectors calibrated? Did you update the dme with the new injectors?

[AddicLee]

Originally Posted by asiflicious

Leaky injectors or valve cover gasket maybe

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[utkarsh436]

Yeah the injectors have been coded