Your car’s check engine light is a good indicator that something in your car may need maintenance. But what are some of the reasons your car’s check engine light is on? There are a few reasons that will be discussed in further detail below.
One common reason your car’s check engine light is on is that of a loose, broken, or even missing gas cap. Our gas caps ensure pressure is maintained in the fuel tank and also to prevent gas fumes from entering the atmosphere.
Spark & Plug Wires
These two things work together to start the ignition in your car, so it’s important they are fully functioning at all times. Sometimes they can become worn or damaged, which in turn would make your car’s check engine light come on.
An important element of our car is a catalytic converter, which turns carbon monoxide into carbon dioxide in order to protect the air from harmful gases. Without the proper maintenance, the catalytic converter can become damaged and not be able to do its job, causing the engine light to come on.
The oxygen sensor is able to determine the amount of unburned oxygen in the exhaust system. When the oxygen sensor is no longer working like it should, it can cause damage to other parts of your car, which will prompt the engine light to come on.
Mass Airflow Sensor
The mass airflow sensor is able to tell how much airflow is entering your car’s engine, which will then calculate how much gas you need. You could have trouble starting your car and of course, this will illuminate your engine light.