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idle hangs at 1500 until I come to a complete stop

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Old 03-24-2005, 12:17 PM
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Default idle hangs at 1500 until I come to a complete stop
what tables should I be looking into to stop this.
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Old 03-25-2005, 02:31 PM
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Originally Posted by Blackbird
what tables should I be looking into to stop this.
What are your mods? Have you just installed a cam?

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Old 03-25-2005, 03:58 PM
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This is the throttle follower, possibly enhanced by a
vacuum leak / drilled TB / etc. base airflow offset.
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Old 03-25-2005, 09:01 PM
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Originally Posted by Blackbird
what tables should I be looking into to stop this.
Try this. Go to Edit, Engine, Idle, Idle Airflow, (Throttle Cracker) Airflow vs RPM vs MPH. Zero out table up to 64 mph and 2800 rpm.
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Old 03-26-2005, 02:55 PM
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Originally Posted by Larry
Try this. Go to Edit, Engine, Idle, Idle Airflow, (Throttle Cracker) Airflow vs RPM vs MPH. Zero out table up to 64 mph and 2800 rpm.
I agree. Usually when the idle hangs forever until you come to a complete stop it's throttle cracker. When the idle eventually comes down it's throttle follower.
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Old 03-26-2005, 03:57 PM
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Originally Posted by Larry
Try this. Go to Edit, Engine, Idle, Idle Airflow, (Throttle Cracker) Airflow vs RPM vs MPH. Zero out table up to 64 mph and 2800 rpm.
When you make this change does the PCM have to go thru a relearn? How long do you need before seeing any change?

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Old 03-26-2005, 05:51 PM
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No relearn necessary.
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Old 03-26-2005, 06:16 PM
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easy way is to turn the ign on --take the plug off the maf and tps sensor --shut off the ign then plug it all back in --it works on my car anyways
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Old 03-26-2005, 10:17 PM
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if your running a KnN then you might want to clean off the oil from the maf and TB. I had that problem. Ran fine after that.
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Old 03-27-2005, 10:16 AM
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excellent. I will give these things a try soon and let you know.
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Old 04-06-2005, 01:43 PM
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Try this. Go to Edit, Engine, Idle, Idle Airflow, (Throttle Cracker) Airflow vs RPM vs MPH. Zero out table up to 64 mph and 2800 rpm
tried this. zero difference.

any other ideas?
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