What causes the EPC warning light to illuminate?

1 Answers
WestonLynn
07/30/25 7:38am
The reasons for the EPC light illumination are as follows: 1. Intake system malfunction, such as leaks or blockages. 2. Throttle body contamination or excessive carbon buildup. 3. Substandard fuel selection. 4. Abnormal cylinder pressure. 5. Sporadic faults or false alarms. 6. Valve malfunctions, sticking or carbon deposits. 7. ECU failure. The following solutions are recommended: 1. Troubleshoot intake system issues, use qualified fuel, clean the throttle body, remove carbon deposits from relevant components, and perform thorough cleaning. 2. If the issue persists after addressing other faults, it may be necessary to reprogram the ECU with relevant data.
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