i have a 95 ls , and had upgraded to gsr tranny, custom clutch, and act 12.5 flywheel. i then had started my car, the cel when on, and i had checked the code, the code read o2 heat wire. the thing was, i didnt touch the o2,i know that i had replaced the 02 sensor like about 8 months ago and no light, but after the upgraded stuff, the cel when off for the 02 heat wire. can someone help me? thanks to all that helped.

 

It's possible that a wire was damaged during installation. Check the engine harness.

 

i had checked it, nothing seems to be damaged, do you think i should replace the o2 sensor?