Hi,

I have been looking for the cause of some recurrent lambda codes for a long time.

They are 2c7e, 2c6a and from time to time, also 2c31.

Car seems to run OK, has plugs, coils, all 4 o2 sensors done. The “only” thing left would be injectors. I know there is some of them in bank 1 which is leaking when releasing the throttle.

This log was taken at IDLE. The codes normally appear after two-three starts. Also after resetting adaptations, but it takes longer for the codes to appear then.

I am starting to think that the codes are due to an exhaust leak, does that make sense? Hope it is, don’t want to follow the injector replacement path atm…

Thanks and BR.