ok checked fuel pressure 60lbs checked cylinder pressure 150-160lbs my ses loght came on and looked it up it said o2 sensor was bad could that be causing all my problems? im going to replace it tommorow but ??????

 

good call ZR1

 

What codes is it throwing? After seeing that plug the O2 wasn't ALL of your problems... that plug was toast. Change the O2s, but get that tuner to tap in and see what's going on in your upper RPM band.

 

it was P0135 and hes out of town this week i was trying to fix it my self b4 he gets back im guessing its running lean in the upper rpms?