nitrocoop

It's an all stock 94 Z28. Opti went out about 6 months or so ago, replaced it, all was well. Then it recenely decided to start acting up again. This time it's not the same feeling as the opti. It really just felt like it had a big cam at idle, and then ran rough from 1500-3000rpms. It threw a code for EGR, I replaced it. Same thing. So with 110,000 miles i figured it was about time for a set of wires. Well, now it's worse. Same rough feeling, just more noticeable and now it has a loss of power that it didn't before. All of the wires are correct, I checked checked and rechecked. I also put plugs in it. Same thing. Can anyone Help?? Please?? I'm about to pull my hair out.

krayzie7th

have you scanned it after you put new wires and plugs and the EGR? what kind of plugs did you put?

cruzin94

iTrader: (2)

when its dark out look in ur engine bay make sure ur not arcing off anything, dissconnect ur battery for a half hour then run it again and see if u throw a check engine and see what it is

FireSilverLullaby

iTrader: (5)

sounds like it could be a vacumn leak, what are you idling at?
and have you done anything at all to it lately like taken off the throttle body.

MysticLT1

iTrader: (1)

check ur TPS or IAC??? my car was doing that clean up my TPS took care of it

krayzie7th

^^lies!! ahah, yea sounds like it could be a TPS problem.

beeker82

coil?