i have a 95 gp when the car is at normal operating temp it has just a little misfire u can tell cause the motor rocks and u can hear a little putt putt through the exhaust but when ur driving it no mis fire at all i did tune up all in right firing order no service light and lower intake gasket it has 203k on the motor and to me it lacks power. if u drive it as soon as u start it when cold it misfires throughout driving until it warms up do u think its time for new injectors or timing chain

First off, dont ever drive the car cold. All that oil drained down to the oil pan needs to circulate through the engine, get warm, and start lubricating.

Id change the fuel filter and see if that does anything. If not, I would move to the injectors. My car does the same thing. Slight misfire at idle but when driving its fine. I hooked up a scanner (since I got the random misfire code, wouldnt tell me which cylinder) and found out it misses only at idle in cylinder 4. So my guess is injector.

I had no service engine light either. But when I let my car sit for like 10 minutes at idle, it finally came up.

_________________

http://WWW.AZGMPERFORMANCE.COM

thanks bro ill try that i never drive my car cold just one of those times when u got 10 min to get to work u gotta do wat u gottta do lol but just by chance how often and when should u change the timing chain

I have the same exact problem, except mine trips the SES.

_________________

[url=http://www.xboxlc.com/profile/austin0150]

[/url]

Changed my no. 4 injector and it did nada.

_________________

[url=http://www.xboxlc.com/profile/austin0150]

[/url]

wow...reading THIS section of the forum just saved me alot of time and cash. thanks. same issue for my GP except its a 2000 se.