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1300 Models

  1. Jack up and support front of vehicle. Push the voltmeter probe into Yellow/Black wire terminal at control box number 1 connector. Connect the negative probe to ground. Start engine.
  2. Select second gear (man. trans.) or position 2 (auto. trans.) and accelerate slowly, while observing voltmeter. Voltage should be battery voltage below 6 MPH and no voltage above 12 MPH. If so, sensor is okay. If not, install a new sensor and retest.
Fig 1: Exhaust Gas Recirculation System (1300)
G36668
Fig 2: Exhaust Gas Recirculation System (1500)
G36671