Accurate Auto Center can diagnose the reason why your check engine light has turned on and won’t turn off. It’s important to pay attention to the check engine warning because it may be the only indication that something is wrong. Everything else may seem fine. The following auto parts can cause the engine control module to turn on the check engine light if they go bad.
Catalytic Converter
The catalytic converter lasts, on average, about 10 years. If you drive an older automobile and the check engine light turns on, it could be that the catalytic converter is malfunctioning. You may also see black exhaust smoke that smells like rotten eggs flowing out of your tailpipe.
EVAP Control System
The EVAP control system makes certain your fuel does not evaporate out of your car, truck, or C/SUV. This system can malfunction and cause the engine control module to turn on the check engine light. You may have engine performance trouble if the EVAP control system is malfunctioning.
Engine Control Module
It might seem strange, but the engine control module will turn on the check engine light if it is malfunctioning itself. Usually, when the module malfunctions, your car’s engine will also die immediately and refuse to restart no matter how many times you try to start it.
Fuel Tank Cover Cap
Pull over and check the tightness of your gas cap if the check engine light turns on right after you’ve filled your tank. This can be a sign that the cap is too loose and needs to be retightened. It can also be a sign that the cap needs to be replaced because it can no longer seal the tank.
Mass Airflow Sensor
The mass airflow sensor rarely goes bad but it can get dirty because it’s located behind the air filter. When it gets dirty, it indirectly affects the engine’s performance by skewing air inflow data. A check engine warning plus engine lag can signal a dirty mass airflow sensor.
Oxygen Sensor
The oxygen sensor lasts around 90,000 miles to 100,000 miles. After this time, you may receive a check engine warning and notice that your engine isn’t performing as it should be if the oxygen sensor is malfunctioning. Replacing the faulty oxygen sensor solves the problem.
Your check engine light might also come on if the spark plugs or transmission are malfunctioning, so call Accurate Auto Center in Tomball, TX, today to schedule an appointment for a diagnostic check.