The LH2.4 did away with the idle control screw on the throttle body, so not an option.
I've already stripped and cleaned the TB, set the butterfly to close fully, thus allowing the IAC to govern airflow at idle. Since it is post MAFF, I would imagine the engine fuels according to what the MAFF determines. I can only imagine the idle speed, as in what the ECU wants it to be, is set by the ICU and governed by the IAC.
I think I'm going to have an experiment with the mechanical movement available on the dizzy, see what happens..
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