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funny idle/ stalling 89 244 200

posted by  someone claiming to be amargill19 on  Tue Jan 8 05:10 CST 2008 [RELATED]

I've got this bad idle, and it wants to stall when I'm off the throttle.

Happens when it's cold, and just after it's been warmed up. It won't stall after I give it a good flogging once warmed up - but the idle continues to drop and raise (from as low as 200/300 rpm and then as high as 1100rpm)

It's normal idle is around 6-700 rpm i think.

If I'm BARELY on the throttle (even like 2% throttle), it's fine, once I step off it will surge up and down a bit. Sometimes it won't surge up and down for a bit.

Does it in gear, or in park.

Car stalled a few times this morning when cold. Recently changed the plugs. Cap and rotor were done about 30-40,000km ago.

What's a good way to test the IAC valve? Would a dirty throttle body cause this?

I appreciate any tips, ideas, or suggestions. I'm a pretty amateur mechanic.


TIA,

Amar






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