testing IAC?
Melting Slicks
Joined: Jul 1999
Posts: 3,214
Likes: 101
From: Decatur, Alabama
Without a tech1a scan tool, you can do the minimum idle reset proceedure, do a quick forum search for the details, Basically, turn on ignition- dont crank, wait 30 sec. unplug IAC, THEN unplug spark advance connector (brown and black I think stripped wire by windshield wiper motor), start car, set idle torx screw on throttle body to idle speed of 450 rpm, yes 450 rpm - may die a time or two but shouldnt, THEN take either an ohm meter or tech1 and loosen TPS sensor - slide up either director to get a reading of .54 to .56 then tighten.
replug IAC and spark advance - car should slowly go to 650 rpm smooth idle. This should verify IAC operation. If ok, disconnect battery to clear code set from unpluggin spark advance earlier. - 5 minute job with TPS harness tester ($20 from ecklers). Good Luck!
replug IAC and spark advance - car should slowly go to 650 rpm smooth idle. This should verify IAC operation. If ok, disconnect battery to clear code set from unpluggin spark advance earlier. - 5 minute job with TPS harness tester ($20 from ecklers). Good Luck!
Melting Slicks
Joined: Jun 2010
Posts: 2,178
Likes: 1
Team Owner
Joined: Jan 2003
Posts: 20,335
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From: Summerland B.C. Canada
