Throttle Position Sensor: Adjustments

Verify that minimum idle is at specified value.

Make all checks/adjustments with engine at operating temperature.

Carbureted Models: Remove aluminum plug covering the adjustment screw. Remove the screw and connect a digital voltmeter to black wire (-) and either of the other two colored wires (+). If voltage is approximately 5 volts, this is the reference voltage source. Connect DVOM to the other wire in this case. Apply thread locking compound to the screw and with ignition on and engine not running (as applies), quickly adjust screw to obtain specified voltage at indicated condition.

Fuel Injected: With ignition on and engine not running, connect digital voltmeter positive lead to pin A (blue-dark wire) and connect negative lead to pin B (black wire). Check reading against specified value and rotate sensor to adjust.