car not running well

[eugenesxyby999]

Car works great until it gets to the normal temperature. Rpms is never at the same line. and sometimes it drops low enough to make the car studder.

any suggestions?

 

[AlaskanDsm]

first off, i would do a boost leak test followed by checking your ISC for functionality.

IC Pipe Tester

DmTaLoN's Idle Speed Control Test/Fix Page!

YouTube - DSM ISC

Whoops, didn't notice that it was an N/T... You can still check the ISC as I think the N/T has one as well but don't quote me on that. If you have noticed a decrease in your gas mileage or performance at all, it could also be a potential O2 sensor issue.

 

[eugenesxyby999]

i changed the ISC about a month ago. The old one was black as hell. the new one was nice, gold and shiney.

this could be the problem, the fact that it was black. what could that mean

 

[eDeclpse92]

i agree. check the isc. but i also had a similar problem with my n/t. it was because the ignition was just a tad out of time. It was fine when it was cold and then, it would stutter a little when it warmed up and would want to die as well. also, this happened to a friend and it was because their plugs were bad.

 

[eugenesxyby999]

so what did you and your friend do? change the plugs and ran efficiently?