jealous of your engine bays
05-12-2008, 01:15 PM
#42
Boost Czar
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Ok, so if my idle dosent correct with the a/c on is it safe to assume my IAC is no good? I have unplugged it with the car running and nothing changes. Is there anything else that could be bad? I ask because I have tried 3 different IAC's and still have the same problem.
do you have a lightened flywheel?
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05-12-2008, 01:36 PM
#43
No sir. In fact I have the 1.8 flywheel in my 1.6.
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05-12-2008, 01:36 PM
#44
Boost Pope
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Ok, so if my idle dosent correct with the a/c on is it safe to assume my IAC is no good? I have unplugged it with the car running and nothing changes. Is there anything else that could be bad? I ask because I have tried 3 different IAC's and still have the same problem.
There's not a whole lot to the IAC circuit. Assuming an NA, it gets its power from the same white/red wire that drives the injectors, then it goes to ground at the ECU through a blue/orange wire.
I'd check that you get +12 on the connector with key on, that you have continuity to the ECU on blue/orange, check to see that you have a finite non-zero resistance across the IAC, and physically inspect it to see that it's not jammed up.
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05-12-2008, 02:18 PM
#45
i have no issues idling with a/c. its the CLT temp that dictates whether or not the valve is open, that's it. otherwise the stock ecu controls the idle valve itself, which should compensate for the extra load by the a/c...any chance you severed the small wire into the a/c compressor? this lets the ecu know the a/c is on.
My car runs on a Haltech E6K. So, is there any workaround so a standalone knows to bump up the idle to compensate for AC?
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