- at a temperature of -30°C — 24.0-27.2
- at a temperature of 20°C - 2.35-2.55
- at a temperature of 100°C - 0.180-0.186
Coolant temperature sensor resistance, kOhm
- at a temperature of 25°C - 2.14-2.36
- at a temperature of 80°C - 0.27-0.29
Resistance of the accelerator pedal position sensor between contacts 3 and 5) (1st channel), Ohm - 1200
Accelerator pedal position sensor resistance (between contacts 2 and 6) (2nd channel), Ohm - 1700
Resistance of the injector winding at a temperature of 20°C, Ohm - 0.33
Fuel temperature sensor resistance at 25°C, kOhm — 2.05
Resistance of the fuel pressure regulator at a temperature of 20°C, kOhm - about 5
Crankshaft angle sensor resistance, Ohm — 720-880
Throttle actuator resistance at 25°, Ohm — 43-49
General information
The fuel system with direct fuel injection under high pressure with the fuel distribution rail "Common Rail" consists of sensors that determine the state of the engine, an electronic engine control unit (engine-ECU), which performs control functions based on signals from sensors and actuators operating on commands from the control unit.
The electronic engine control unit controls the amount of fuel injected (fuel supply), injection advance angle and idle speed of the diesel engine depending on its condition. In addition, the electronic control unit has a self-diagnostic function that simplifies troubleshooting.
Direct fuel injection adjustment
The moment of opening of the injector and the time during which the injector is open and fuel is injected are regulated so that a strictly defined amount of fuel is supplied to the engine, changing in accordance with the constantly changing operating modes of the engine. One injector is installed in each cylinder. Fuel, under low pressure, is supplied by an electrically driven fuel pump from the fuel tank to the high-pressure fuel pump. The fuel pressure required for injection is created by the high-pressure fuel pump, from where the fuel is supplied through high-pressure pipes to the Common Rail and then to the fuel injectors.
Self-diagnosis function
- If a malfunction occurs in one of the sensors or actuators, the engine malfunction indicator lamp lights up in the instrument cluster, warning the driver of the malfunction.
- When a fault is detected in any sensor or actuator, a diagnostic code appears that corresponds to the detected fault.
- The corresponding current data on sensors and actuators are stored in the RAM of the electronic engine control unit, and they can be read using the MUT-II device. Moreover, the actuators can be forced into operation under certain conditions.
Other management functions
1. Air conditioner relay control.
Turns the air conditioning compressor electromagnetic clutch on and off.
2. Control of the diesel engine preheating system.
The article was taken from the website: MITSUBISHIMAN
3. Fan control
The operating speeds of the cooling system fans and the air conditioning condenser fans vary depending on the coolant temperature and the vehicle speed.
4. Exhaust gas recirculation system control
5. Throttle control
The throttle control solenoid controls the vacuum applied to the throttle actuator, which causes the throttle valve to open and close.
6. Boost pressure control
The side compressor flap control solenoid controls the vacuum applied, which results in the boost pressure being regulated.
7. Control of the starting aid system.