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IAC counts were jumpy, used to be 30 now 60? what gives?

Old 06-21-2005, 04:36 PM
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Default IAC counts were jumpy, used to be 30 now 60? what gives?

ok so i started the car and logged, hot the lowest they got were about 59 (IAC counts) reset the fuel trims and reloged and they ended up going to 49, before i went to the beach they were at about 29, is this just because of fueling changes or what? i dont understand why it would change???

im going to try to adjsut the set screw to get that 60 number down to about 40 and see how it settles out, does it take time to settle? any ideas?
Old 06-21-2005, 04:43 PM
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Did you turn the ac off? That would do it.
Old 06-21-2005, 04:59 PM
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Mine change considerably just with the change in air temperature. A 20 degree difference in days made a 20+ click change in IAC counts.
Old 06-21-2005, 05:34 PM
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If they are between 30-60 I wouldn't worry about it honestly.
Old 06-21-2005, 05:37 PM
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alright i guess ill just leave it as long as the car can recover. i just might have to change it to fix my cold start up a little more.

p mack, i have no ac lol, but yeah i saw when the fans came on the counts went to 70, that sound about right?
Old 06-21-2005, 05:37 PM
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how does temp change effect it? for example when its hotter out does it get higher or lower
Old 06-21-2005, 05:44 PM
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Well the pcm adds 0.1 g/sec for each fan. But from my logs it looks like a change to the IAC counts of 20 is about 1.0 g/s. So the fans shouldn't make a whole lot of difference.


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