Why is the idle speed high after cleaning the throttle, fuel injection head and idle motor?

Because the cleaning throttle is not clean, the fuel injection head is not smooth. According to the type of throttle, decide how to clean it. In contrast, removing the cleaned throttle can make it more thoroughly clean. There are two kinds of throttle valves, namely cable type and electronic type.

The cable throttle can be disassembled and cleaned directly with detergent. Professional maintenance method is to use special cleaning agent for cleaning and maintenance, and professional cleaning agent products can effectively solve the dirt on the throttle.

After the fuel injection head and idle motor are high, it is recommended to focus on the following points:

1, speed sensor: focus on checking the working conditions and lines of the speed sensor;

2. On-board computer (ECU): It is possible that the parameters in it are set incorrectly when leaving the factory, or there are invisible faults that cannot be removed, resulting in faults;

3. Throttle: Whether the throttle line or throttle sensor is stuck or the line is faulty.

Extended data:

Precautions:

How to clean and prevent should pay attention to:

1, which should be dismantled and cleaned;

2. Correct some mistakes in cleaning the throttle valve;

3. The fouling of the throttle is mainly engine oil vapor, followed by particles and moisture in the air. That is to say, using a qualified air filter and removing the crankcase ventilation pipe, the fouling speed of the throttle will be much slower. The crankshaft is built in the crankcase, and the lower part is connected with the oil bottom. The working temperature of this part is about 100 ~ 180.