IAC Question
#1
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I wanted to make sure my IAC was working correctly. When I cold start the car up, the IAC is ~170 and it slowly works its way down. The IAC will settle to 40 when the car is hot. I get a little bit of surging during cold starts and wanted to eliminate the IAC. Hot starts are very good. The VE tables are set to 50/65/80 for 400/800/1200 and the F/A has also been adjusted.
#2
TECH Veteran
iTrader: (1)
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Take a look at this thread:
https://ls1tech.com/forums/pcm-diagnostics-tuning/177230-stop-drilling-those-tbs-fix-stalling-without-computer-tuning.html
I think the best thing you can do is reduce the authority of the IAC with the TB set screw, but not take it out of the system.
https://ls1tech.com/forums/pcm-diagnostics-tuning/177230-stop-drilling-those-tbs-fix-stalling-without-computer-tuning.html
I think the best thing you can do is reduce the authority of the IAC with the TB set screw, but not take it out of the system.
#3
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Originally Posted by Cal
Take a look at this thread:
https://ls1tech.com/forums/showthread.php?t=177230
I think the best thing you can do is reduce the authority of the IAC with the TB set screw, but not take it out of the system.
https://ls1tech.com/forums/showthread.php?t=177230
I think the best thing you can do is reduce the authority of the IAC with the TB set screw, but not take it out of the system.
#7
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Locking the IAC did no good for me. Unplugging it won't make a bit of difference. Then the PCM will bounce up and down off the high and low idle spark adjust thresholds, which is just as bad, if not worse.