i now have an interesting problem on my hands. you see, before about a week ago, my car was fine, i believe i have a water pump leak so my low coolant light is on and i have to fill it every ~1.5 weeks a bit. I posted a thread about my SES light coming on when i was ~55mph. Now whats happening is after my car warms up, it sputters when i gas it in low rpms, then itll just kick back in and go. if i come to a stop, itll just vibrate pretty bad and fluctuate in RPMs.
however, on the highway, when i go ~55, the SES light doesnt come on anymore. it has come on once I think when i was on the highway, only to dissapear like 10 seconds later.

Could this be OPTI? O2 maybe? New plugs? what would cause this interesting SES situation? Thank you!

btw, 94 z28, hotcam, headers, gears,1le elbow, cai, !EGR etc etc.

 

ttt

 

Get it scanned and that should tell ya before throwing expensive parts at it on everybody's thoughts. There are 50 different things it could be.