What does the warning light indicate?

1 Answers
VonMelanie
07/29/25 9:34pm
Here are the reasons why the warning light is on: 1. Sensor issues: When the water temperature, crankshaft position, air flow, intake temperature, or oxygen sensors are damaged, have poor contact, or experience signal interruption, the car's ECU cannot accurately obtain engine data; 2. Maintenance issues: Irregular maintenance and poor driving habits can increase the burden on engine operation; 3. Fuel quality issues: The fuel added to the car has a specific grade, and failing to add it as required can cause engine wear; 4. Poor mixture combustion: This can lead to engine carbon buildup or knocking issues, which will be detected by the engine's oxygen sensor; 5. False faults: These can occur due to impacts while driving, tampering with certain engine connectors, or temporary ECU signal interruptions.
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