PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Help with HP tuners

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Old Jun 23, 2011 | 05:17 AM
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Default Help with HP tuners

Tuning a 2000 Camaro with LT's, hotcam, auto no stall. I've got where the car idles great in gear or in neutral at 625.

The problem is when the car starts up it idles great at about 850 for 3 seconds then tries to drop to the 625 desired idle. When it does it dips down to around 500 then back up 800 and sometimes cuts off.

Is there are way to make it so its a gradual drop or none at all??
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Old Jun 23, 2011 | 06:21 AM
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I messed w/ my idle airflow table to correct this.


On a side note the software is good and all.... but has the shittiest customer support and instructions ive ever seen. Good luck.

Last edited by pwrtrip75; Jun 23, 2011 at 09:11 AM.
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Old Jun 23, 2011 | 08:39 AM
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Either increase you integral low airflow values in your idle control tables, or decrease the startup airflow and friction airflow decay rate.
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Old Jun 23, 2011 | 01:55 PM
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Originally Posted by Hemi2Slo
Either increase you integral low airflow values in your idle control tables, or decrease the startup airflow and friction airflow decay rate.
Can you please explain airflow decay and how it works.
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