10-Step B, Throttle Position Sensor

1. Disconnect automatic idle speed motor at throttle body, then connect a voltmeter between connector terminal with orange/dark blue wire and ground.
2. Place ignition switch in the Run position.
3. If reading is 1/2 to 1 1/2 volts, replace fuel injector.
4. If reading is more than 1 1/2 volts, replace throttle position sensor.