With SST-Engine Signal Monitor

THROTTLE POSITION SENSOR
Inspection:
1. Remove the ECM.




2. Connect the SSTs (Monitor, Engine Signal and Adapter Harness) to the ECM.
3. Verify that the throttle valve is closed throttle position.
4. Turn the ignition switch to ON.
5. Measure the ECM terminal 3F voltage by using a voltmeter.

- Closed throttle position: 0.1 - 1.1 V
- Wide open throttle: 2.8 - 4.5V
- (Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)

6. If not as specified, adjust the throttle position sensor.