There are two phenomena of insufficient engine power, uneven speed, and thick black smoke from the exhaust pipe: One is continuous exhaust of black smoke; the other is intermittent exhaust of black smoke, and the engine shakes. ⑴ The reason for the lack of engine power and continuous black smoke discharge is that most or…
Sensors on electronically controlled diesel engines can be described as diverse, roughly divided into three types: pressure sensors, temperature sensors, speed and position sensors. There are about ten types of subdivisions. Today, I will introduce most of the necessary sensors for electronically controlled diesel engines. 1.Crankshaft speed sensor Installation location: on the flywheel housing, next…
ABS system 1. Comet ABS Diagnosis location: behind the driver, above the relay box, etc.; Diagnosis seat shape and configuration: 1. Flat three-pin -> AK-35 is recommended; Configuration: power supply (1), ground wire (1), signal wire (2); Diagnostic line identification method: 1. Special mark: One of the signal lines is between -9V ~ -5V; 2.There…
Natural gas system: 1) Yuchai Natural Gas Diagnosis location: in front of the co-pilot/in the relay box/near ECU/above the accelerator pedal/near the instrument panel/in the fuse box near the left front wheel, etc.; Diagnosis seat shape and configuration: 1. Square 4-pin ->AK-46; Configuration: power cord (1), ground wire (1 or), signal wire (2); Diagnostic line…
The phenomenon of diesel engine runaway is the phenomenon of diesel engine running, especially in the process of small and medium load operation, due to some reasons, the diesel engine speed increases sharply, overspeeding without automatic control, exhaust smoke, sound and vibration. After the occurrence of “speeding”, as the speed of the diesel engine increases,…
1. Damage to the intake pressure and temperature sensor: ①ON gear, the engine fault light is always on; ②A small amount of black smoke is emitted when the accelerator is stepped on the spot, and a lot of black smoke is quickly accelerated; ③The engine is sluggish; ④ Trouble code: P01D6 (the voltage of the…