What is the reason why Hafei horse racing can't start because of too many faults?

It is possible that the throttle body, idle valve and fuel injector are not easy to start, and excessive carbon deposition leads to idle jitter. First of all, clean up the carbon deposits of these parts and observe them during the trial operation. Secondly, check the use of spark plugs. Spark plugs need to be replaced every 30 thousand kilometers, and must be replaced in time when driving to the specified mileage. Then check whether the fuel pressure is normal.