If this fault code occurs, it is generally recommended that you check whether your fuel pressure itself is normal, in this case, you can consider replacing a fuel pressure sensor first, or you read the data flow to see if the fuel pressure changes when the signal change of the fuel pressure sensor is normal, if the change is normal, That is generally because your high pressure oil pump is broken, this need to consider replacing the high pressure oil pump
The possible causes are as follows: 1, the internal components of the sensor are damaged, resulting in a short circuit. 2. The line takes the iron, forming a loop, causing the sensor voltage to be too high. 3. The electrical parts related to it are damaged, causing the voltage to be too high.