LS1TECH - Camaro and Firebird Forum Discussion

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-   -   Not reading IAC's ? (https://ls1tech.com/forums/pcm-diagnostics-tuning/77873-not-reading-iacs.html)

86MonteSSLS-1 May 29, 2003 09:50 PM
Not reading IAC's ?
 
I am not seeing any iac counts at all. Any way to check if IAC is working properly. I did pull iac and observed pintle moving when turning ign on/off. Using Atap. Also not seeing any knock retard. This at idle.

86MonteSSLS-1 May 30, 2003 05:01 PM
Re: Not reading IAC's ?
 
Any One? :p

Batmobile/SS May 31, 2003 10:25 AM
Re: Not reading IAC's ?
 
I assume you mean the Autotap Windows version software is reading 0. If I remember correctly there are 2 IAC parms in the software. One is like "idle air control motor position" and one is "desired IAC position". The one that worked for me was "desired IAC position" not the other like you would think. I also only got 0 for "idle air control motor position".
I compared the "desired IAC position" values with the EFlive software values for the IAC I was getting and they were basically the same. I emailed Autotap but did not get a reply.

SS SLP2 Jun 1, 2003 10:01 PM
Re: Not reading IAC's ?
 
Not know about your IAC you will never see KR at idle, IF you have KR problems, will ONLY see KR at WOT or under load ( climming a hill or so )
my 0.02
Johnny


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