1. Misfires: If the engine is experiencing misfires, the check engine light may flash. Misfires occur when the fuel-air mixture in one or more cylinders doesn't ignite properly, causing the engine to run rough or stall.
2. Ignition Problems: If there is a problem with the ignition system, such as a faulty spark plug or ignition coil, the check engine light may flash. Ignition problems can lead to engine misfires and other performance issues.
3. Oxygen Sensor Failure: The oxygen sensor monitors the amount of oxygen in the exhaust gases and provides feedback to the engine control unit (ECU) to adjust the air-fuel mixture. If the oxygen sensor fails, the ECU may not be able to properly regulate the air-fuel ratio, which can lead to engine performance issues and emissions problems.
4. Catalytic Converter Failure: The catalytic converter helps to convert harmful exhaust emissions into less harmful substances. If the catalytic converter fails, the check engine light may flash. Catalytic converter failure can affect the vehicle's emissions performance and can also cause decreased engine performance.
5. Transmission Problems: In some cases, the check engine light may flash due to transmission problems. This could indicate issues such as low transmission fluid, a faulty transmission sensor, or a mechanical problem within the transmission.
If the check engine light is flashing on your 2002 Mazda MPV, it is important to have the vehicle diagnosed by a qualified mechanic as soon as possible. Ignoring a flashing check engine light can lead to more severe problems and costly repairs.
