One of the most common causes of the engine check light coming on is emissions problems. This can be caused by a variety of factors, such as:
- Faulty oxygen sensor
- Catalytic converter failure
- Evaporative emissions system leak
2. Engine Misfire
An engine misfire occurs when one or more cylinders are not firing properly. This can cause the engine to run rough, stall, and decrease fuel efficiency. Engine misfires can be caused by a variety of factors, such as:
- Faulty spark plugs
- Bad ignition coils
- Fuel injector problems
- Vacuum leaks
3. Transmission Problems
Transmission problems can also cause the engine check light to come on. This is because the transmission is directly connected to the engine and any problems with the transmission can affect the engine's performance. Transmission problems that can cause the engine check light to come on include:
- Low transmission fluid
- Faulty transmission solenoids
- Torque converter failure
4. Electrical Problems
Electrical problems can also cause the engine check light to come on. This can be caused by a variety of factors, such as:
- Faulty sensors
- Wiring problems
- Computer problems
5. Other Problems
In some cases, the engine check light can come on for reasons that are not related to the engine or transmission. This can include things like:
- Low tire pressure
- Open fuel cap
- Loose gas cap
