Technical data of diesel engine management systems Engine code AHU AFN AHH Idle speed, rpm 940 ± 40 730 ± 30 850 ± 50 – with automatic transmission, rpm – 830 ± 30 – Maximum revolutions, rpm 5000 ± 200 5000 ± 200 5000 ± 100 Fuel...
Diesel fuel system device Location of diesel engine controls in the engine compartment 1 - pressure and temperature sensors of the air entering the engine. On vehicles manufactured before VIII.1997, the...
Checking the diesel engine preheating system Sensor location (A) coolant temperature 1, 3 - electrical connector pins Verification conditions The voltage of the car's on-board network must be at least 11.5 V. The engine...
Checking glow plugs Using an LED tester to check the performance of glow plugs If the LED lights up, then the glow plug is good. If the LED does not illuminate, the spark plug is bad and needs to be...
Removal and installation of glow plugs Glow plugs with normal annular gap (1) and without ring gap (2) Removing 1. Disconnect electrical wires from glow plugs. 2. Unscrew the glow plugs. Installation 1. Screw in the...
Fuel heating system To increase the fluidity of diesel fuel at low outside temperatures, it must be heated. Heating is produced by additional pumping of fuel, which is returned from the high pressure...
Removal and installation of fuel injectors Thermal O-ring Arrow - to the cylinder head. Warning: When checking the operation of the fuel injectors, never put your hands or any part of your body under the jet of fuel coming...
The main malfunctions of the engine management system Before troubleshooting, make sure that there is enough fuel in the fuel tank, the engine has no mechanical defects, the battery is charged and the starter cranks the engine at a...