Throttle Position (TP) Sensor: Notes
- Turn ignition on. Check TP sensor output voltage at sensor wiring harness center terminal. At idle, output voltage should be greater than .2 volt.
- Gradually open throttle plate. Output voltage should gradually increase as throttle plate is opened. At wide open throttle, output voltage must be less than 4.8 volts.
- If voltages are not as specified, make sure 5-volt input and ground circuits between TP sensor and engine controller are okay. Repair circuits, if necessary. If TP sensor output voltages are still not as specified, replace TP sensor. Adjustment is not required or possible.
NOTE:
Also see appropriate throttle position sensor tests in TESTS W/CODES - 2.5L
article in the ENGINE PERFORMANCE section.