Quote:
Originally Posted by XfireZ51
Mike,
Yes I know about setting the TPS v, but that is affected by the Min Air adjustment. You need to get the throttle blade opening correct before you can set the idle TPS voltage properly. It's an iterative process.
Turn the key ON, then pull the IAC CONNECTOR. This should block the IAC port to the throttle body. Then start the motor. Does it idle, and if so at what RPM?
If it's too high, you need to close the throttle blades till you reach the desired idle speed. You actually set it a bit lower so you get some IAC control over the idle. Whenever you adjust the throttle blade, need to re-check TPS voltage and adjust if necessary so it is below the idle voltage threshold. Otherwise, ECM won't use the correct Spark Timing and you end up w an idle hunt.
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Hi Dom,
Touched on something there...as I have idle hunting when the engine is real cold; at/near freezing or below. It goes away as the motor temp gets over around 60ยบ - there abouts.
...and adjust if necessary
so it is below the idle voltage threshold.
I'm with you until the term
idle voltage threshold. I'm not sure exactly what you're referring to. Do you mean the TPS at idle; a la the 0.54V?? Not sure where I got confused...