Table 3.1. Technical characteristics of the fuel injection system elements
Purpose | Brand/Type | Note |
Fuel injection pump | BOSCH CR/CP3 | Fuel pressure 250-1350 bar |
Fuel pump (low pressure pump) | BOSCH EKRZ | Pressure no more than 2.5 bar. Productivity: not less than 80-100 l/h |
Fuel pressure sensor | BOSCH | Screwed into the high-pressure accumulator. Resistance: when measured between contacts 1-2 and 1-3 = 4.3 MOhm; when measured between contacts 2-3 = 1050 Ohm |
Nozzles | BOSCH | Electromagnetic injector. Winding resistance: |
Fuel pressure regulator | — | Built into the injection pump, non-removable. Resistance: approximately 5 Ohm at 20°C |
Fuel injection system control unit | BOSCH EDC 15 | With 128 contacts |
Accelerator pedal position sensor | HELLA | Dual track potentiometer. Track 1 resistance: 1200±480 ohms. Track 2 resistance: 1700±680 ohms |
Pre- and post-heating unit | NAGARES BED/7 | Ensures operation of the pre-start and post-heating system according to commands from the injection system control unit |
Crankshaft speed sensor | MGI | Resistance: 800±80 Ohm at 20°C |
Glow plugs | BERU or CHAMPION | Resistance: 0.6 Ohm when the connector is disconnected |
Intake air temperature sensor | SIEMENS | The air flow meter is built into the sensor. Resistance is approximately 2170 Ohm at 20°C |
Fuel temperature sensor | MAGNETTI MARELI and ELTH | Resistance = approximately 2050 ohms at 25°C |
Atmospheric pressure sensor | — | Built into the control unit |
Camshaft Position Sensor | ELECTRICIFIL | Hall sensor |
Boost pressure sensor | DELCO | Resistance: 4 kOhm when measured between contacts A and C. Resistance: 5 kOhm when measured between contacts B and C. Resistance: 9 kOhm when measured between contacts A and B. |
Boost Pressure Regulating Solenoid Valve | BITRON | Resistance: 16.5±1 Ohm at 25°C |
Air flow meter | SIEMENS | Air flow meter with built-in air temperature sensor |
Exhaust gas recirculation solenoid valve | PIERBURG/SIEBE | Conductive path resistance: 8±0.5 Ohm at 20°C (when measuring between contacts 1 and 5). Sensor resistance: 4±1.6 kOhm at 20°C (when measuring between contacts 2 and 4) |
Turbocharger | ALLIED SIGNAL | Calibration of the boost pressure limiting valve: (constant geometry turbocharger) 120 mbar with a stroke of 1-4 mm; 400 mbar with a stroke of 10-12 mm; > 450 mbar - the rod is in the extreme position |
Immersion heaters | — | Resistance: 0.45±0.05 Ohm at 20°C |
Coolant temperature sensor | ELTH | Resistance: 2252±112 Ohm at 25°C |
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