Hafei cleans the throttle.

There are many problems. It is difficult to stop the car due to insufficient power, start the cold car and turn off the oil return easily.

Generally speaking, write a prescription for your car:

Diagnosis:

Use a computer to access the engine system. Look at the data flow of idle motor. When the car is cold, when the air conditioner is turned on, or when the idle steps change normally, check whether the throttle valve is too dirty and whether the idle motor is too dirty.

Check whether the instantaneous current of the motor is too large with a digital ammeter, resulting in low instantaneous power supply voltage.

After starting for many times, the engine still screams, the combustion is not good, the engine oil is deteriorated, and the engine lubrication is insufficient. Remove the burner and check whether the crankshaft rotates too hard.

Maintenance items: clean the oil circuit. If there is a problem with the steps of the idle motor and there is no result after cleaning, replace the idle motor.

Check and adjust the ignition timing advance angle, and maintain the starter. Check the gasoline engine oil pressure system after flameout to see if the pressure is normal.

Doing this will basically rule out your fault.