What Causes My Check Engine Light To Stay On

The check engine light comes on when your car s computer detects an issue within the powertrain.

What causes my check engine light to stay on.

In this case if you don t know how to reset check engine light here are 4 useful way for you. There are many different reasons that can cause your airbag light to flash or stay on. For common check engine light concerns the warning light will likely stay on for a while after you perform the repair. If your car isn t feeling jerky or strange when the check engine light comes on the first thing you should check is the gas cap.

How to reset the check engine light. This light is the centerpiece of your vehicle s on board diagnostics system obd. Since the 1980s many vehicles have been built to be run by the engine computer unit ecu which controls vehicle s drivetrain and auxiliary systems based on input from the vehicle s sensors this computer will make adjustments to your vehicle s performance to keep your ride running smoothly. The check engine light comes on when the engine control unit or the transmission control unit has detected a fault in the engine or transmission system.

The check engine light only comes on in certain conditions. If you do notice a difference try driving your vehicle as little as possible until you can bring it in for service. The check engine light is an irritation for many drivers but it gives you essential information about your car and shouldn t be ignored. Pull over tighten it and take a look at the cap to see if it.

If you learn your vehicle s ins and outs you won t need a check engine light to tell you when something is wrong. Head to an auto parts store and have them run a diagnostic to find the cause of the check engine light. Call ahead and make sure they can handle your make and model since some cars have special. If the check engine light is coming on intermittently be sure to notice any changes in the performance of your vehicle when the light is on.

The check engine light will not light up. There are a few ways to turn the reset the check engine light. And you may even avoid the issues that cause the light to come on in the. If your check engine light is on the easiest way to diagnose this problem is to check your trouble code memory with an obd2 scanner.

Why is my airbag light on.