Check Power train light.

[Ujellysv6]

Does any1 know what this generally means? I was thinking it just maybe be the O2 senors, but could it be the catalytic converter or something else? Not sure what to do yet. If its just the O2 senors i can replace them easily, has any1 had any problems with a check power train and it not be the O2 senors? please help

Cheers

[Gothem92]

When i altered my exhaust i now get a Check Power Train Light/warning. its cause i've moved my O2 sensors in my exhaust and they arn't reading the same due to different pipe size. For me i need to get them deleted out or get them tuned in. or w/e they do.

Might be different for you, but thats 1 possibility.