R 3500 P/U 2WD V8-454 7.4L VIN W 4-bbl (1988)
Throttle Position Sensor: Adjustments
The TPS is not adjustable. The ECM utilizes the IAC position reading at idle for its zero reading, therefore no adjustment is necessary.
Throttle Position Sensor: Adjustments
The TPS is not adjustable. The ECM utilizes the IAC position reading at idle for its zero reading, therefore no adjustment is necessary.