The new Regal is boring to turn at low speed.

Release the accelerator and step on it again, which may be a gearbox failure.

Troubleshooting: After receiving the car, the maintenance personnel first confirmed the fault phenomenon of the car, and found that as long as the speed exceeds 60km/h, the engine speed will not come up, the speed will not increase, and the engine fault light will light up for no reason. Subsequently, the maintenance personnel connected the special detector for the faulty vehicle and began to read the fault code. As a result, they found the fault codes of engine 1 cylinder and cylinder 2 fire, and the fault codes of heated oxygen sensor circuit sensor abnormality. Because there was a similar situation before the faulty car, the impurities on the filter screen of the fuel pump were removed and accelerated to return to normal, so the maintenance personnel took the same approach this time.

But it didn't take long this time, and the car came to the pit again because it couldn't accelerate. Because the engine fault light is also on, the maintenance personnel have to connect the detector and enter the engine control unit for inspection. Unexpectedly, an additional fault code related to the three-way catalytic converter appeared. In view of this fault code, the maintenance personnel removed the three-way catalytic converter for inspection, and found that most of the grid holes on the ceramic body were blocked, so the maintenance personnel replaced the faulty vehicle with a new three-way catalytic converter, and the vehicle returned to normal again.

A few months later, the car came to the maintenance station again and complained that the same problem appeared again. After reading the fault code, the maintenance personnel found the fault code about the oxygen sensor and the fire. According to this fault code, the maintenance personnel only replaced the front and rear oxygen sensors and cleaned the fuel injector and throttle. As a result, before the owner drove out for one kilometer, the vehicle accelerated again, which attracted the attention of maintenance personnel this time.