Ok im having a big problem and i was wondering if any one might be able to help me out?
My check engine light keeps coming on and off and every time it comes on i loss my lift and it feels like the car has lost a good amount of power but its weird the light will go off and every thing will be fine for a week or soo then the light comes on and some times ill lose lift and power and some times i wont i really cant explaine it the light will come on usually when im shifting from 2nd to 3rd at about 3k rpm oh its a 2000 gts btw PLEASE help...also i have 1100 miles on the new engine and it has been skroked to a 2.1 i dont know if this makes any diff either
Look under the TSBs for the GTs. . . "Check Engine Light"
It says something to the effect of a bad ECM or the fuel injectors and to replace with updated parts.
Since the engine has been 'worked over' it could be possible that the O2 sensor is going south, or the catalytic converter. 1st option would be the EFI, though.