Throttle Position Sensor: Adjustments

Turn the engine off, key on. Reenter diagnostics and select PCM/ECM override E.5.3, ISC Motor. Press the cooler button to retract the ISC motor to the minimum air setting.

1. Using a T-25 L-shape torx wrench, loosen the TPS screws just enough to permit the sensor to be rotated. Open the throttle and let it snap shut against the minimum air screw. Adjust the TPS so the voltage is 0.475 to 0.525 volts.

2. Tighten the TPS mounting screws with the sensor in the adjusted position.

3. Recheck the parameter to be sure the TPS voltage is 0.475 to 0.525 volts.