What are the reasons for the fault light of China V diesel engine being on?

[AngelinaRose]

Damage to the intake pressure temperature sensor causes it. The detailed explanation for the fault light of China V diesel engine being on is as follows: 1. Damage to the intake pressure temperature sensor: Cause analysis: Abnormal intake pressure signal, the ECU cannot receive correct intake volume information, leading to abnormal fuel injection quantity, then incomplete combustion, lack of engine power, and black smoke during acceleration. Problems with wiring harness connection and sensor failure can both cause this fault. 2. Damage to the water temperature sensor: Cause analysis: When the water temperature sensor fails, the ECU uses a substitute value upon detecting an unreliable output signal from the water temperature sensor. To protect the engine, the ECU limits the engine torque. 3. Damage to the oil pressure sensor: Cause analysis: Severe damage to the oil pressure sensor probe, the ECU detects no connection to the oil pressure sensor, and the displayed value on the instrument is a substitute value from the ECU.