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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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