What is the frustration of Beijing Hyundai Tucson in the second gear?

The reason why Beijing Hyundai Tucson has a sense of frustration in the second gear is because the gearbox control unit is faulty; Gearbox oil stock is insufficient; The transmission oil is dirty. The length, width and height of Tucson body are 4475mm, 1850mm and 1660mm respectively, and the wheelbase is 2670 mm.

A 2009 Beijing Hyundai Tucson 2.0 sport utility vehicle with a mileage of about1.2000 km. User's feedback: The engine fault light of this car is on, and the shift impact of transmission is serious. Inspection and analysis: the maintenance personnel detected the engine control unit and found that there was no fault code. After power-off reset, the engine is debugged, the fault no longer appears, and the vehicle is handed over. The next day, the user reported that the fault appeared again. After the vehicle enters the factory, according to the control principle of the fault light, the maintenance personnel may analyze that the transmission control unit has failed. Check the transmission control unit and find the fault code P0885-Abnormal operation of transmission relay. Check the data flow of transmission control unit and find that the power supply voltage fluctuates abnormally. Tap the relay with your finger and find that the voltage is 0 V. At this time, the relay is no longer attracted, and the shift impact of the vehicle appears again.

Troubleshooting: Replace the relay and troubleshoot.

Repeatedly deliberately stopping, accelerating and releasing the accelerator pedal, it didn't take long for several key data to be abnormal. After sudden acceleration, the accelerator pedal has been released and the vehicle is in the taxiing stage. However, the throttle opening in the data stream is always displayed as 34, the voltage of the throttle position sensor is 17V, and the pressure of the oxygen sensor jumps slowly between 0.6 and 0.8v. Finally, when the vehicle is almost stationary, the throttle opening is 23.9, and the signal voltage to ECM is 1.3V, which is almost fully open1. At this time, the fuel injector pulse width is 15ms, which is abnormal.

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