I just put in new plugs, wires, and 02's and I still have this weird problem where I hear a weird miss type sound in the exhaust at idle. The car drives fine doesnt seem like there is a miss at higher rpm's. I know it could be a bunch of things, but I know for a fact it is not the plugs, wires, 02's, or coil. From your experiences what is it probably? I might try a different opti, I have heard someone mention the fule filter but I seriously dont see why this would fix a miss at idle and not cause a problem at high rpm. ANy other ideas?
Thanks

 

it sounds like the opti. i have a 93 z and the opti got some moisture in it and caused the same problem. the 94 and up cars have a vacuum to pull moisture out of the opti, but it still could be the problem.

 

I would remove the intake bellows,and spray ever so gently into that little hole in the throttle body(at the bottom) with cat approved carb cleaner,and see if that helps after you put the bellows back on.(The Idle control valve sometimes gets glogged up).Anybody else?

 

I had a similar problem after heads/cam install...the rocker arms would set of the knock sensor. turned out i had a bad knock sensor...