Originally posted by Descent
how do you control the idle speed?? what do you turn do increase/decrease it?
The IACV uses coolant temp as a reference to idle the engine faster until it warms up, then it lets the ide speed drop to the normal idle RPM. Your base idle can be adjusted with the slotted screw on the top of the throttle body. Turn the screw in to lower, out to raise idle. Do this when the engine is warm, with all accessories turned off.