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Thread: IAC counts
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03-16-2010, 08:33 PM #1
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IAC counts
What are your normal IAC counts? When I had the car tuned I didnt even notice that the idle was higher than usual. I slotted the TPS and got the voltage down to .59 volts. Then I adjusted the throttle screw and got the counts from 0 up to 25 and the idle to about 790 rpms in park. I havent found any vaccum leaks and the code it threw was p0507. It hasnt come back on yet.
Last edited by chevymec; 03-16-2010 at 10:17 PM.
1995 Z28 1997 SS S10
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03-16-2010, 08:56 PM #2
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And when I got the idle where its at now the TPS was about .47 volts.
1995 Z28 1997 SS S10
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03-18-2010, 06:40 PM #3
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The minimum airflow is adjusted first, then the TPS voltage adjusted to where you want it to be. So I believe you did it in the reverse order. Counts in the low to mid 20s is about right; there's no specific number that I've ever seen or know of.
Golen Engines recommends .67 volts after slottng the TPS screw holes. Full recommendation is on their site if you're interested.
JakeMy son, Ryan M. Cameron, graduated from West Point on 22 May 2010! He was commissioned as a 2nd Lieutenant and I pinned on his first pair of "Butter Bars" PROUDEST DAY OF MY LIFE!!
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