What are the reasons for the engine warning light to illuminate?

1 Answers
MacAndrew
07/29/25 7:45pm
Engine warning light may illuminate due to the following reasons: 1. Sensor damage, poor contact, or signal interruption can trigger the engine warning light. 2. Fuel quality issues - poor gasoline quality may lead to incomplete combustion of the air-fuel mixture in the cylinders, causing the light to illuminate. 3. Intake system problems - a clogged air filter can, in severe cases, cause the engine warning light to activate. 4. Excessive carbon buildup - ignition difficulties may cause reverse breakdown of ignition coils, leading to poor ignition, incomplete combustion pollution, and ultimately illumination of the engine warning light.
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