so anybody have an experience withstarting up an eclipse and having the rpms shoot up to 2500 rpms and idling real high....like 1100 rpms? also while driving rpms take their time to come back down after i let off the gas. engine braking only happens every once n a while too. what could that be?

 

Other pro on here tend to suggest cleaning throttle body or check for vacum leak. I had a little vac leak and my idle was higher than normal and also when i start, the rpm shot up. I ghetto rigged it and stuck a screw in the intake manifold where the little hole was. Fix that problem.

 

If you search this topic you will find tons of discussions about this under my name. I had the same problem I went crazy finding out what it was. It ended up just being the intake manifold gasket. I say replace that befor you start on anything, its only 15 bucks and that should fix the problem. Its a a little time consuming to take off the manifold and what not but not too difficult of a fix.

 

I hope its not that gasket cuz i just got a new one! ill check out ur posts on this issue and check my vacuum lines. thanks man

 

maybe messing aroung with the BISS screw might help. Try that.

(OFF TOPIC) By the way Ziggy, what all have you done to your car? I live in GA too.

 

3 angle valve job, ported and milled head, cai, dc sports headers, lightened crank pulley, clutchmaster stage 1 clutch, fidanza 8lbs flywheel, and im about to put in a high flow cat converter

 

i think vaccuum leak