What should I do if the Buick Hideo engine fault light is on?

1, check the fuel quality. If the fuel quality is not up to standard, it may lead to insufficient combustion of the mixture, which may lead to the lighting of the fault light. It is recommended to add high-quality fuel and replace the fuel filter regularly.

2, check the exhaust emissions. If the exhaust emission is not up to standard, it may be due to the failure of the three-way catalyst, excessive carbon deposition in the intake pipe, blockage of the fuel nozzle, failure of the oxygen sensor and other reasons. In this case, it may be necessary to replace the three-way catalyst.

3. Check the engine system. Possible reasons include dirty throttle valve, carbon deposit on valves and injectors, sensor failure (such as intake pressure sensor, intake and exhaust camshaft adjustment solenoid valve, accelerator pedal sensor, throttle position sensor, air flow meter, crankshaft position sensor, etc.). ). It is recommended to carry out regular cleaning and maintenance, such as cleaning the throttle every 20,000 to 30,000 kilometers and cleaning the air intake and fuel system every 30,000 to 40,000 kilometers.

4. Check the ignition system. Possible problems include carbon deposition or damage of spark plug, ignition coil failure, etc. If problems are found, replace the spark plug and ignition coil in time.