Quote:
Originally Posted by 76FJ55
I would use the factory process. the idea is to set the bypass so that the IAC is naturally in the mid position and has range in both directions to account for changing engine loads and still maintain the correct RPM.
For anyone with idle issues I would highly suggest doing a smoke test to ensure there are no intake leaks. Intake leaks are very common, with the age of the hosses and the fact that the 3.2 is using stacked intake manifold gaskets with a plastic spacer between them.
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This! And seek out all possible vacuum leaks. The last time I had my engine out, I replaced all the vacuum hoses, and every connector. There were a few cracked parts and poor fitting hoses. Removing the intake and replacing the gaskets and was easy with the engine out.
It now idles just like the factory designed.