Bad iac motor?
06-04-2008, 05:36 PM
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Bad iac motor? If the iac is bad how will the car run? My car runs great but it has a p0507 code, (idles high). I've taken the tb off and cleaned it and the iac, installed a new tb gasket. Checked for vacum leaks, iac wiring seems to be good. Would like to get the code cleared up. Thanks
06-04-2008, 05:43 PM
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did u remove the iac and clean the inside of that? also a stock auto m6 should idle at 700rpm and a auto at 600rpm. try to run the car with the iac unplugged, that way u can eliminate the problem
06-04-2008, 07:01 PM
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Thanks for the responce. Yes I did take the iac out and cleaned it. Right now I don't have anything to check engine rpm. I will unplug it and see what she does. Thanks
12-28-2011, 09:01 PM
#4
What did you ever find out? The last few weeks, mine has an increasingly intermittent high idle problem (2000+ RPM, p0507) The extra airflow is being read by the MAF so stuck IAC or stuck throttle body seem to be the only 2 possibilities.
The crazy thing is that my scanner shows no IAC codes, and it shows the commanded and actual IAC counts to be in sync, even though I suspect the IAC was sticking all the way open.
Has this happened to anyone else?
Yesterday, the car was idling properly for once, so I let it warm up and unplugged the IAC so the plunger would be locked in that position.
Today, it ran all day with no high revving or idling.
However, I will not get my hopes up until it has run properly all week with the IAC unplugged...
If that happens, then I will replace it and plug it back in.
The crazy thing is that my scanner shows no IAC codes, and it shows the commanded and actual IAC counts to be in sync, even though I suspect the IAC was sticking all the way open.
Has this happened to anyone else?
Yesterday, the car was idling properly for once, so I let it warm up and unplugged the IAC so the plunger would be locked in that position.
Today, it ran all day with no high revving or idling.
However, I will not get my hopes up until it has run properly all week with the IAC unplugged...
If that happens, then I will replace it and plug it back in.
