engine code
- Thread starter raistlin77
- Start date
Code 12 -Idle Air Bypass motor not controlling idle properly (generally idle too low) - IAB dirty or not working. Take it off and clean it thoroughly with throttle body cleaner. Clean the electrical contacts with non flammable brake parts cleaner at the same time.
See the "Surging Idle Checklist for help with all your idle/stall problems.
The quick and easy way to dump the codes is in there too, and all you need to do it is a paper clip! The first two posts contain all the updates to the fixes. At last count there were 24 possible causes and fixes for surging idle/stall problems. I continue to update it as more people post fixes or ask questions.
See the "Surging Idle Checklist for help with all your idle/stall problems.
The quick and easy way to dump the codes is in there too, and all you need to do it is a paper clip! The first two posts contain all the updates to the fixes. At last count there were 24 possible causes and fixes for surging idle/stall problems. I continue to update it as more people post fixes or ask questions.
Sorry for the confusion of what I wrote. What I ment was the shaft that slides back and forth between the two holes sealing the two chambers. With no power energizing the iac I can blow air threw the body holes. I figure that when the iac is not powered you should not be able to blow air through the ports.
That is correct. When the IAC is working correctly, it will not pass air in at least one direction. Pressure from one side will push to close the blocker and it may blow past the blocker when applied to the other port The blocker in the one I have seen looks a little like a miniature jar lid.
