when u ground the terminal on the ecm for the blink test when your check engine light is on.if u leave the jumpers in and start the car will that screw up the computer?i need to know because my iroc has a zz4 with a rebuilt trans and there is no power what so ever like there should be?any replies would be appreciated.

 

ive done it on accident a few times,thus far {knock on wood} ive never screwed anything up.

did you have an SES light on in the first place? if so,its entirely possible that is the reason you have low power.

 

not anymore,its something else.im taking it to fbodycentral in md