Why does the engine malfunction indicator light come on?
1 Answers
If the engine malfunction indicator light comes on in your vehicle, it indicates that the engine's air-fuel mixture is not at the ideal ratio. The simplest method is to use a specialized diagnostic tool to read the fault codes in the engine system, and then perform troubleshooting based on the stored fault information. Common causes of this phenomenon include: Carbon buildup issues: Spark plugs that have not been replaced for a long time may have excessive gap, carbon buildup, or internal damage. Damage issues: One of the ignition coils in a cylinder may be damaged, causing that cylinder to malfunction.