Why Won’t My Check Engine Light Turn Off?

Why Won’t My Check Engine Light Turn Off?

The engine control module (ECM) is in charge of all of your vehicle’s dashboard lighting. The ECM is the main computer chip in your car. Sensors in your car provide data to the ECM to inform it that everything is in working order. When a problem occurs, the ECM illuminates the relevant dashboard warning light to alert you to the situation. The check engine light serves as a catch-all for engine issues that lack their own light. The common reasons for a check engine light that our auto repair shop in San Diego sees are listed here.

Catalytic Converter

If your catalytic converter fails, the amount of carbon in your vehicle’s exhaust will skyrocket, and your check engine light will illuminate. You may also detect a rotten-egg-like stench emanating from your vehicle’s exhaust system and engine bay.

Electrical System

The alternator, battery, ECM, sensors, and electrical wiring are among the components of the electrical system. The ECM may turn on the check engine light if there is a problem anywhere in the system, especially if it is dying.

Exhaust System

Why Won’t My Check Engine Light Turn Off?

If your vehicle’s exhaust system is malfunctioning, the check engine light will illuminate. Clogs, leaks, and a broken exhaust manifold are all common exhaust system issues.

Fuel System

The engine light might potentially be caused by the fuel system. If the system is blocked or leaking, the combustion chamber may have too little or too much fuel. If the gas cap is too loose and does not create a seal over the tank, the check engine light will turn on.

Mass Airflow Sensor

The mass airflow sensor, often known as the MAF sensor, detects how much air enters your engine from the outside. If the sensor starts to fail, it will communicate an error code to the ECM, which will cause the check engine light to illuminate.

Oxygen Sensor

The O2 sensor is another name for the oxygen sensor. This sensor monitors the amount of oxygen emitted into the atmosphere by your vehicle’s exhaust. It can fail and either give an error code to the ECM or create a combustion chamber imbalance. A check engine light will appear in any case.

Spark Plugs

It might be a problem with the spark plugs or the ECM if your spark plugs are misfiring. This will not only turn on the light, but it will also cause your motor to stutter.

Finally, transmission difficulties might result in a check engine light, according to Automobile Repair Shop San Diego. If your check engine light comes on, call one of our auto mechanics in San Diego

Auto Repair in San Diego

For many years, Automobile Repair Shop San Diego has provided high-quality auto repair in San Diego. We give you hassle-free quotations and repairs in San Diego after a thorough assessment of your vehicle’s current issues. We’ll tow your vehicle for free, offer a rental car, and work directly with your insurance company to speed up the auto repair process. We’ll even pay up to $500 toward your deductible. Call (619) 330-0862 right now to discover more about how we can help you.