PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Tuning for idle quality, ???'s

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Old May 19, 2006 | 07:41 AM
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98LS-WON's Avatar
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Launching!
 
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From: Wichita Falls, TX
Default Tuning for idle quality, ???'s

My car starts and idles fine when it's cold, if I start it warm it surges from 500-1300 rpm and I have to bump the throttle when the rpm's are decresing to catch it near 1000. After about 30 seconds of this, it idles normal again. I don't have a tuner, but does anyone have an idea what could be causing this to hapen only when it's warm? Also, I've had the $4000 dyno tune, but how much would it cost to only have the idle adjusted. I'd go back to the shop that originally tuned it, but I've moved halfway across the country. Thanks for any answers.
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Old May 19, 2006 | 11:10 AM
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Find someone local with a compatible year HPTuners. You most likely just need to get your running air flow inline. Adding a little timing may help smoothen your idle too.
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Old May 19, 2006 | 12:05 PM
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i completely agree with guitsboy. I just had the same problem tuning the cam in sig...adding some running airflow... or desired airflow in EFILIVE straightened the problem out... i now have a rock steady idle with no fluctuations... but i assure you that i know exactly what you are talking about as i just dealt with it yesterday...

Louie
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