Let's all add to this:
Trottle body idle adjustment screw
Idle Air Control Valve (IACV)
Vaccum lines connected to the Intake Manifold
Gaskets

 

shaky foot.

 

map, tps, etc....

 

Ah yes, The over tightened trottle cable. Forgot about that one.


[Modified by Spade, 12:13 PM 11/27/2002]

 

timing can be off.. u can have a wickd CAM ... uhh you have your A/C on =P

 

For some reason my car is idling really low like when my cars warmed up the idle drops down to like 650rpm. But I think it's my timing.

 

"stupid cat. they like the bay because its warm, oh well...the neighbors lost another one"

tru story.

messy cleanup.

 

Headders, I put some EX DC sports on my HX and my car runs like **** now
it lopes at idle and misfires throughout the entire rpm range

 

I thought that was normal...

 

650rpm is the stock idle specification for your engine.

 

fast idle thermo valve
coolant temp sensor

 

The noise you hear after you installed the header was always there...Its just that the header has thinner walls than the stock manifold so you will hear more of the combustion process as its happening in your head...

Zee