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Home › Mitsubishi › 2017 › Mirage ES, Standard Trans › Repair and Diagnosis › Engine Performance › Engine Control Systems › Symptom Procedures › INSPECTION PROCEDURE 1: Throttle Valve Will Not Fully Open Or Close › Troubleshooting Hints

Troubleshooting Hints

(The most likely causes for this case:)

Malfunction of the throttle body.
Malfunction of the APP sensor.
Malfunction of the engine control module (ECM).