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Re: High idle
lets focus on the IAT sensor. with your voltmeter, hook the black wire to the car's ground. in the IAT connector ( the IAT will be disconnected for these tests)there will be two leads, hook up the red wire to each of the leads, one of then should have 5 volts with the key on. if you don't have 5 volts, trace the wires and look for any brakes in the wire. if you do have 5 volts test the IAT sensor.
in my hanyes, on page 6-1 there is a chart for the resistence of the sensor at certain temps. use the ohmmeter function to test this. i might just change the IAT anyway,its the same part as the ECT. but not as messy to change.
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