What Causes the Malfunction Indicator Light to Illuminate Randomly in the 10th Generation Civic?

[SanAshley]

There are usually several reasons why the malfunction indicator light (MIL) illuminates randomly in the 10th generation Civic: Poor Combustion State: Poor combustion state in the engine is the primary cause of the engine malfunction light illuminating. Engine Knock: First scenario: The car lacks power. Second scenario: The car lacks power, and the engine noise is excessively loud. Third scenario: There is an obvious knocking sound from the engine. In the first scenario, some engine malfunction lights may illuminate, while others may not. In the second and third scenarios, the engine malfunction light will inevitably illuminate. Internal Causes of Engine Malfunction Light Illumination: Poor fuel quality. Dirty engine cylinders with accumulated carbon deposits.