Throttle Position Sensor: Adjustments
Adjustment1. Warm up the engine to normal operating temperature and run it at idle.
2. Verify that the first idle cam separates.
3. Stop the engine.
4. Connect the SSTs (Engine Signal Monitor and Adaptor Harness) to ECM.
5. Turn the ignition switch to ON.
6. Loosen the screws and rotate the throttle position sensor to set the correct closed position voltage
Closed Position Voltage:
- ECM Terminal 3F (Narrow Range) 0.75-1.25 Volts
- ECM Terminal 3G (Full Range) 0.1-0.7 Volts
7. Check the correct open position voltage and close to open voltage.
Closed to Open Voltage:
- ECM Terminal 3F (Narrow Range) 1.0-5.0 Volts
- ECM Terminal 3G (Full Range) 0.4-4.3 Volts
Wide Open Voltage:
- ECM Terminal 3F (Narrow Range) 4.8-5.0 Volts
- ECM Terminal 3G (Full Range) 4.2-4.6 Volts
8. Tighten the screws.
Tightening Torque
1.6-2.4 Nm (14-2O in.lb.)
9. Cancel the memory of malfunctions by disconnecting the negative battery cable for at least 20 seconds and depress the brake pedal.
10. Reconnect the negative battery cable.