What is the reason for Toyota Reiz's high idle speed after cleaning the throttle?

Reasons for high idle speed of Toyota Reiz after cleaning the accelerator;

After the vehicle cleans the intake valve, the flap still moves in the original formation, which means that it is not in place, but the difference is that the carbon deposit has been cleaned, so the air intake will be more than usual, resulting in high idle speed.

In this case, you need to do computer programming. If you don't do it, the engine computer will take a long time to adjust and recover.

Once the sludge in the throttle body is removed, the ECU still controls the throttle opening according to the memory, and at this time, the air intake will inevitably increase accordingly, resulting in an increase in idle speed. It takes time and repeated learning and memory to get it back to the optimal idle speed.

Extended data

Matters needing attention in cleaning Toyota Reiz throttle:

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.

reference data

Baidu encyclopedia-throttling

Baidu Encyclopedia-Reiz

People's Daily Online-Will the poor air make the car "sore throat"? The throttle was dirty before the mileage.