The pickup throttle module is faulty.

The main symptoms are engine jitter and unstable idle speed, because the throttle is a vulnerable part and needs to be replaced frequently. As long as the above situation occurs, after other possible faults are eliminated, the throttle sensor is faulty and should be replaced in time. In other words, the throttle is dirty and the vehicle is idling; Cold cars don't strike easily; The tachometer pointer is unstable at idle speed (unstable at idle speed). The composition of electric throttle can be roughly divided into the following parts: throttle, electromagnetic driver, potentiometer, controller (some of which are not directly managed by ecu) and bypass valve. Its fault characteristics are divided into two categories: hard fault and soft fault. Hard fault refers to mechanical damage, and soft fault refers to dirt, imbalance, etc. If there is too much sludge in the throttle, it may cause poor engine acceleration and increase fuel consumption.

In fact, the throttle is very popular, which is equivalent to the breathing system of the engine. It is similar to our throats. It is the gate that controls air in and out of the engine. When the outside air enters the engine, the gas will mix with gasoline to produce a combustible mixture. The upper end of the throttle valve is connected with the air filter and the lower end is connected with the main body of the automobile engine. After the combustible mixture is produced, it will enter the engine through the delivery pipe, thus triggering the engine power system.