my car is idling fine when it first starts but once its warmed up it stays in the 700-800rpm range..but its very pulsy and it sounds like somethin knocking from the engine..could that be b/c of plugs or my coil?

edit- the car also shakes noticeably

Mods: E-bay Intake, Vibrant Muffler, J Woodleys Ground Wire Kit, F&R Upper Strut Bars, B&M Short Shifter

i don't even know what to say. :shrug


What makes your car so special that it would be something different than the 4323785784 other topics on shitty idle or whatever.

Please search and you shall find all the problem areas.

yea i was just looking before and realized it could be like 10 diff. things..but so far i know its not just having to clean the TB out b/c i just did that and it didnt do a thing..but dam was that black inside there haha..guess im goin on a mad hunt..i just wanna get the thing fixed its embarrasing driving it anywhere lol

Mods: E-bay Intake, Vibrant Muffler, J Woodleys Ground Wire Kit, F&R Upper Strut Bars, B&M Short Shifter

Well the easiest place to start would be replacing the spark plugs and the plug wires...sometimes it's just that simple..and ofcourse, othertimes not :)

Did you ever fix the problem?

I am having the exact problem and I replaced/gapped the plugs, replaced the iac vavle, cleaned the throttle body, and replaced the throttle body gasket. I also replaced the tiny filter in the missing link... the inside of the throttle body was COMPLETELY covered in carbon build up.

At initial startup when cold it idles with with 8psi vac (according to greedy ebc) or -15in/hg and then after it warms up and I drive it the idle becomes loppy and the vacuum is anywhere from -10in/hg to almost 0 (this is diffent almost every time... but in the same range)

have you replaced the plug wires? I had this same problem and found it to just be bad wires.

Originally posted by CarbonFiberRST
Did you ever fix the problem? I am having the exact problem and I replaced/gapped the plugs, replaced the iac vavle, cleaned the throttle body, and replaced the throttle body gasket. I also replaced the tiny filter in the missing link... the inside of the throttle body was COMPLETELY covered in carbon build up. At initial startup when cold it idles with with 8psi vac (according to greedy ebc) or -15in/hg and then after it warms up and I drive it the idle becomes loppy and the vacuum is anywhere from -10in/hg to almost 0 (this is diffent almost every time... but in the same range)

I am having the same issues. Lopey idle, and vac @10. From what I have read in other posts, I think that my timing belt has skipped a tooth. My car has jumped a few teeth before to the point where it wouldnt even run.

I guess that I will be checking the timing here in a week or so.