Gasoline Engines
NOTE:
Throttle Position Sensor (TPS) on gasoline engines is not adjustable. Replace TPS if sensor is not within specification.
- Disconnect ECA 60-pin connector. Inspect connector for damaged pins, corrosion or loose wires; repair as necessary. Connect Breakout Box (T83L-50-EEC-IV) and reconnect ECA to breakout box. Connect digital voltmeter positive lead to pin No. 47 and negative lead to pin No. 46. Turn ignition on. Observe voltmeter reading while moving throttle slowly to Wide Open Throttle (WOT) position. Release throttle slowly to closed position. See TPS VOLTAGE SPECIFICATIONS .
- If voltage is not as specified, ensure throttle stop screw and linkage are adjusted correctly. Remove TPS and check for damaged, corroded or misadjusted pins. If pins are okay, install sensor. Ensure sensor is seated correctly. Repeat step 1. If voltage is not as specified, perform KOEO self-test. See appropriate TESTS W/CODES
article in the ENGINE PERFORMANCE section.
TPS VOLTAGE SPECIFICATIONS
| Application |
Idle |
Wide Open Throttle |
| 2.3L |
0.20 |
4.84 |
| 2.9L |
0.34 |
4.84 |
| 2.9L |
0.20 |
4.84 |
| 3.0L |
0.20 |
4.84 |
| 4.0L |
0.20 |
4.84 |
| 4.9L |
0.34 |
4.84 |
| 5.0L |
0.34 |
4.84 |
| 5.8L |
0.34 |
4.84 |
| 7.5L |
0.34 |
4.84 |