Everything is up to operating temp. (170 after a 10 minute drive on a cold day) In drive IAC counts are reading 175, in park they read 0. Idle in drive is around 800 (what the chip is programmed for) and in park it hovers around 1050. Correct me if I'm wrong but the IAC numbers increase when its adding air to keep the engine running. So the lower numbers mean its working less (in my case not at all) to keep the engine running. My question is what could be causing that massive fluctuation in IAC counts? TPS is at .44 at idle btw. I'm thinking just a simple re-adjustment might fix it but I started second guessing my self with that high of a difference.
Crazy IAC numbers
- Thread starter Caleb W.
- Start date
Nope, no codes. I cleaned about a year ago. I guess I'll buy another one and put it in they aren't expensive. Would you recommend even attempting resetting/adjusting it?
Around what number should I make a goal for the IAC? From what I've read I should get it around 20. Now for the actual adjustments, I adjust the throttle blade screw to get the IAC dialed in first then adjust the TPS to .42-.46v, and rinse and repeat until it's good? And do I do these adjustments in gear or in park?
Last edited:
crashedout1
Active Member
- Joined
- Feb 23, 2011
Did you clean the IAC and throttle body?
Yes. I can do it again to double check I got everything. Is there supposed to be any sort or sealant/RTV around the threads of the IAC?
