Code P1507
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Laughing Gas
Joined: Oct 2005
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From: The OC
Code P1507
1st time the Expo threw a code, P1507, Idle Air Control under speed error. The wife said it was hesitating, I didn't drive it but ran the codes. I've read that cleaning the IAC helps big time, so that is what I'll do first. Anything else that I need to do?
Thanks,
John
Thanks,
John
Posting Guru
Joined: Jun 2006
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Does it stall when idling? Mine got really rough and I cleaned it and hasn't caused a problem in 30,000 miles. Some don't get that lucky!
You can check the IAC solenoid resistance. I believe it is supposed to be about 10 ohms. You can also disconnect the IAC valve while the engine is running, iff there is no change in rpms, you have a stuck or damaged valve. You can try cleaning it along with the throttle body and see if that helps.
You can check the IAC solenoid resistance. I believe it is supposed to be about 10 ohms. You can also disconnect the IAC valve while the engine is running, iff there is no change in rpms, you have a stuck or damaged valve. You can try cleaning it along with the throttle body and see if that helps.
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Laughing Gas
Joined: Oct 2005
Posts: 1,226
Likes: 42
From: The OC
My wife said it wanted to stall but it didn't, then getting on the freeway or taking off from a light, it had no power and didn't want to take off like it normally would.
I removed the IAC and cleaned it with throttle body cleaner. It had alot of carbon build up, and the flakes and carbon pieces were coming out as I was spraying/soaking it. I also cleaned the throttle body then changed the oil and filter. Disconnected the negative cable to reset the computer, took it for a drive and couldn't get it to act up. The wifey said it worked fine yesterday too, so I hope my issues are over.
I removed the IAC and cleaned it with throttle body cleaner. It had alot of carbon build up, and the flakes and carbon pieces were coming out as I was spraying/soaking it. I also cleaned the throttle body then changed the oil and filter. Disconnected the negative cable to reset the computer, took it for a drive and couldn't get it to act up. The wifey said it worked fine yesterday too, so I hope my issues are over.
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Laughing Gas
Joined: Oct 2005
Posts: 1,226
Likes: 42
From: The OC
It works! Passed CA smog today with 0 emissions and the car gets up and goes like it's supposed to do. No more rough running or stalling issues either. It's amazing what a clean IAC will do for you.
Great, glad you could get it fixed.
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