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idle won't drop until I come to a complete stop

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Old 05-03-2004, 02:13 PM
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Default idle won't drop until I come to a complete stop

especially with the AC on.

what should I monitor to figure out whats up?

I know to look for vacum leaks and I have done that.

What other things cause the hanging idle.
Old 05-03-2004, 02:24 PM
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maybe the TB hole is too large? Is the TB closing all the way? has it always done this or did it just start?
Old 05-03-2004, 02:26 PM
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used to only do it after I went into boost.
now it's doing it consistantly.
Old 05-03-2004, 04:26 PM
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maybe grew a little leak...probably somewhere in the intake path...maybe intake to heads seals???

how much boost you running??
Old 05-03-2004, 04:38 PM
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It's a feature. Trottle cracker makes it stay up until
you get below the speed threshold.
Old 05-03-2004, 04:44 PM
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Originally Posted by jimmyblue
It's a feature. Trottle cracker makes it stay up until
you get below the speed threshold.

Thats what Ive been told. My idle stays ~1600 untill I completely stop.
Old 05-03-2004, 05:03 PM
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Originally Posted by Country Boy
Thats what Ive been told. My idle stays ~1600 untill I completely stop.
Throttle Cracker is disabled at and below 2 MPH - in all the stock PCMs I've seen.

Country Boy - you probaby need to reduce your Idle Air (aka RAF) values at 60*C and above.


Blackbird - IMO- if this is a new issue and you haven't made recent mods to your car...then I would look for a reason ( intake tract leak?) outside of tuning. Tuning will mask it.

joel




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