Mazda 6 idle high fault light

Did the subject ask: "Why is the idle high fault light in mazda 6?" Air flowmeter failure, oil system failure, throttle failure, fuel nozzle failure, sensor failure.

1. air flowmeter fault: air flowmeter is an important sensor to control engine fuel injection. If something goes wrong, the idle speed may be too high or unstable.

2. Oil system problems: problems with the oil system, such as oil pollution or obstacles in the air intake system and oil leakage, may also lead to high or unstable idle speed.

3. Throttle fault: Throttle is an important part to control airflow. If something goes wrong, the idle speed may be too high or unstable.

4. Fuel nozzle failure: Fuel nozzle is an important part to control fuel injection. If something goes wrong, the idle speed may be too high or unstable.

5. Sensor failure: If multiple sensors in the engine system fail, such as water temperature sensor and oxygen sensor, the idle speed may be too high or unstable.