The speed of 502c spiral throttle does not come up.

The reason why the throttle speed can't go up:

1, the gasoline filter or nozzle is blocked, resulting in the oil pump not working and insufficient oil pressure;

2. The clutch is partially failed, oiled or worn;

3, throttle body or motor failure;

4. There is something wrong with the exhaust system;

5. The electrical circuit is open or short-circuited, resulting in poor conduction;

6, add inferior gasoline, gasoline has problems.

Solution:

1, replace the gasoline filter or nozzle;

2. Replace high-quality engine oil.

It is suggested to go to a 4S shop or a regular garage, let a professional technician check it first, read the fault code of the car with a fault table, determine where the problem lies, and then analyze and repair it according to the specific reasons.