Chang 'an Star throttle position

1 Check the gasoline pressure and clean the fuel injector. 2 Adjust the valve clearance (mainly). 3 Check the idle motor and throttle position sensor. 4 Check the intake pressure sensor and water temperature sensor. You ask them to readjust the valve clearance (within the range) and slightly advance the ignition time. Carefully check the idle motor and throttle position sensor (you can manually adjust the idle speed if necessary). Should your car be a 465Q5 transmitter or a 474 engine? I think it is mainly the valve clearance (too small) and gasoline pressure. If it still doesn't work, check the dealer.