Fuel system Tdi of car Land Rover Discovery 1
Tdi fuel system — design description
Fuel system diagram 1 - fuel tank, 2 - mechanical booster pump, 3 - fuel filter, 4 - Bosch VE fuel injection pump, 5 - drain, 6 - injectors, 7 - filter drain plug. Location of system components 1 -...
Fuel system diagram 1 - fuel tank, 2 - mechanical booster pump, 3 - fuel filter, 4 - Bosch VE fuel injection pump, 5 - drain, 6 - injectors, 7 - filter drain plug. Location of system components 1 -...
Description of the electronic fuel injection pump control system
Electronically controlled fuel injection pump elements are installed instead of conventional mechanical devices that perform similar functions. The control unit calculates the required amount of fuel...
Electronically controlled fuel injection pump elements are installed instead of conventional mechanical devices that perform similar functions. The control unit calculates the required amount of fuel...
Operation of the electronic control system
Engine control unit The control unit is located at the driver's feet near the "A" pillar below the dashboard. The block connector has 55 pins. The control unit generates signals to change the amount...
Engine control unit The control unit is located at the driver's feet near the "A" pillar below the dashboard. The block connector has 55 pins. The control unit generates signals to change the amount...
Adjustments — accelerator cable (fuel injection pump lever)
1. Loosen the cable adjustment nut. 2. Keep the accelerator lever in the fully closed position (idle speed). 3. Adjust the position of the sheath so that the cable deflection is 1.57 mm. 4. Check...
1. Loosen the cable adjustment nut. 2. Keep the accelerator lever in the fully closed position (idle speed). 3. Adjust the position of the sheath so that the cable deflection is 1.57 mm. 4. Check...
Fuel injection pump lever position sensor (for the exhaust gas recirculation system)
1. Warm up the engine to operating temperature. 2. Turn off the ignition and disconnect the sensor connector. 3. Measure the resistance between terminals 1 and 3 of the connector. The resistance...
1. Warm up the engine to operating temperature. 2. Turn off the ignition and disconnect the sensor connector. 3. Measure the resistance between terminals 1 and 3 of the connector. The resistance...
Idle speed
Adjustment Note: The idle speed is set automatically during warm-up. Only the rotation speed of a warm engine is regulated. 1. Check and adjust the accelerator cable. 2. Start the engine and warm it...
Adjustment Note: The idle speed is set automatically during warm-up. Only the rotation speed of a warm engine is regulated. 1. Check and adjust the accelerator cable. 2. Start the engine and warm it...
Checking the boost pressure
Pressure value - cm. " Adjustment data, 300 Tdi engine ". 1. Disconnect the hose from the bypass valve actuator diaphragm (on the turbocharger). 2. Connect the tee to the hose and connect one free...
Pressure value - cm. " Adjustment data, 300 Tdi engine ". 1. Disconnect the hose from the bypass valve actuator diaphragm (on the turbocharger). 2. Connect the tee to the hose and connect one free...
Repair — Fuel Level Sensor
Attention: Please follow safety rules. To remove the sensor you will need a special key LST131. Removal 1. Disconnect the battery. 2. Unfasten the rear mat holder. 3. Pull the carpet out from under...
Attention: Please follow safety rules. To remove the sensor you will need a special key LST131. Removal 1. Disconnect the battery. 2. Unfasten the rear mat holder. 3. Pull the carpet out from under...
Accelerator cable
Removal 1. Disconnect the battery. 2. Remove the pin and the shackle securing the cable to the fuel injection pump lever. 3. Remove the cable adjustment nut from the bracket and pull out the cable....
Removal 1. Disconnect the battery. 2. Remove the pin and the shackle securing the cable to the fuel injection pump lever. 3. Remove the cable adjustment nut from the bracket and pull out the cable....
Turbocharger outlet hose
Removal 1. Disconnect the battery. 2. Loosen the clamp and remove the hose from the compressor snail. 3. Disconnect the crankcase ventilation hose from the inlet hose. 4. Remove the clamp securing...
Removal 1. Disconnect the battery. 2. Loosen the clamp and remove the hose from the compressor snail. 3. Disconnect the crankcase ventilation hose from the inlet hose. 4. Remove the clamp securing...
Turbocharger oil supply pipe
Removal 1. Disconnect the battery. 2. Remove the exhaust pipe. 3. Unscrew the hollow bolt securing the tube to the turbocharger and discard the sealing washers. 4. Unscrew the nut securing the tube...
Removal 1. Disconnect the battery. 2. Remove the exhaust pipe. 3. Unscrew the hollow bolt securing the tube to the turbocharger and discard the sealing washers. 4. Unscrew the nut securing the tube...
Turbocharger oil drain pipe
1. Disconnect the battery. 2. Remove the exhaust pipe. 3. Unscrew the nut securing the tube to the block. 4. Unscrew the two bolts securing the tube to the turbocharger. 5. Remove the tube and...
1. Disconnect the battery. 2. Remove the exhaust pipe. 3. Unscrew the nut securing the tube to the block. 4. Unscrew the two bolts securing the tube to the turbocharger. 5. Remove the tube and...
Wastegate valve drive (WV)
Removal 1. Remove the exhaust manifold together with the turbocharger 2. Unscrew the two nuts securing the drive diaphragm to the turbocharger bracket. 3. Remove the drive hose. 4. Remove and discard...
Removal 1. Remove the exhaust manifold together with the turbocharger 2. Unscrew the two nuts securing the drive diaphragm to the turbocharger bracket. 3. Remove the drive hose. 4. Remove and discard...
Turbocharger and gasket
Removal 1. Disconnect the battery. 2. Remove the air filter. 3. Remove the exhaust manifold together with the turbocharger. 4. Remove the bypass valve rod retaining ring. 5. Remove 4 bolts and 2...
Removal 1. Disconnect the battery. 2. Remove the air filter. 3. Remove the exhaust manifold together with the turbocharger. 4. Remove the bypass valve rod retaining ring. 5. Remove 4 bolts and 2...
Fuel transfer pump
Removal 1. Loosen the nuts on the high-pressure pipes on the injectors and fuel injection pump. Remove the pipes. 2. Plug the injector and fuel injection pump fittings. 3. Disconnect the fuel lines...
Removal 1. Loosen the nuts on the high-pressure pipes on the injectors and fuel injection pump. Remove the pipes. 2. Plug the injector and fuel injection pump fittings. 3. Disconnect the fuel lines...
Fuel filter
Removal 1. Disconnect the battery. 2. Clean the surfaces of the filter bracket at the connector of the removable element. 3. Place a container under the filter to collect the fuel. 4. Loosen the...
Removal 1. Disconnect the battery. 2. Clean the surfaces of the filter bracket at the connector of the removable element. 3. Place a container under the filter to collect the fuel. 4. Loosen the...
Charge air cooler
Removal 1. Disconnect the battery. 2. Disconnect the two clips securing the fan diffuser to the upper radiator cover. 3. Unscrew the 4 bolts of the upper radiator cover, remove the cover. 4. Unscrew...
Removal 1. Disconnect the battery. 2. Disconnect the two clips securing the fan diffuser to the upper radiator cover. 3. Unscrew the 4 bolts of the upper radiator cover, remove the cover. 4. Unscrew...
Glow plugs
Removal 1. Disconnect the battery. Candle No. 1 (for models with air conditioning). 2. Remove the belt from the air conditioning compressor pulley. 3. Unscrew the 4 compressor mounting bolts and move...
Removal 1. Disconnect the battery. Candle No. 1 (for models with air conditioning). 2. Remove the belt from the air conditioning compressor pulley. 3. Unscrew the 4 compressor mounting bolts and move...
Exhaust gas recirculation system valve
Removal 1. Disconnect the valve connector. 2. Disconnect the vacuum hose from the valve. 3. Unscrew the two bolts securing the valve to the exhaust manifold. 4. Unscrew the two bolts securing the...
Removal 1. Disconnect the valve connector. 2. Disconnect the vacuum hose from the valve. 3. Unscrew the two bolts securing the valve to the exhaust manifold. 4. Unscrew the two bolts securing the...
Glow plug relay
1. Disconnect the battery. 2. Unscrew the relay fasteners from the bracket. 3. Disconnect the wiring connector, remove the relay. 4. Installation in reverse order.
1. Disconnect the battery. 2. Unscrew the relay fasteners from the bracket. 3. Disconnect the wiring connector, remove the relay. 4. Installation in reverse order.
Exhaust gas recirculation control unit
1. Disconnect the two glove box posts from the front panel and pivot the glove box downwards. 2. Unscrew the two plastic nuts securing the control unit. 3. Remove the control unit from the clips. 4....
1. Disconnect the two glove box posts from the front panel and pivot the glove box downwards. 2. Unscrew the two plastic nuts securing the control unit. 3. Remove the control unit from the clips. 4....
Fuel injection pump lever position sensor (EGR system)
1. Unscrew the two screws securing the sensor to the fuel injection pump board. 2. Disconnect the sensor connector. 3. Remove the sensor. 4. Installation in reverse order, adjust the position of the...
1. Unscrew the two screws securing the sensor to the fuel injection pump board. 2. Disconnect the sensor connector. 3. Remove the sensor. 4. Installation in reverse order, adjust the position of the...
Injectors — removal
1. Remove the oil filler cap and soundproof cap. 2. Remove the high pressure pipe from the injector and fuel injection pump. 3. Disconnect the drain tube from the injector. 4. Seal the connection...
1. Remove the oil filler cap and soundproof cap. 2. Remove the high pressure pipe from the injector and fuel injection pump. 3. Disconnect the drain tube from the injector. 4. Seal the connection...
Fuel injection pump and injection advance angle
Note: The following text applies to vehicles with a manual transmission and without an electronic fuel injection pump control system. References to special tool replacement and additional information...
Note: The following text applies to vehicles with a manual transmission and without an electronic fuel injection pump control system. References to special tool replacement and additional information...
Engine control unit
Note: A defective unit cannot be repaired. 1. Disconnect the battery. 2. Remove the A-pillar trim panel. 3. Loosen the screw securing the control unit connector. 4. Disconnect the control unit...
Note: A defective unit cannot be repaired. 1. Disconnect the battery. 2. Remove the A-pillar trim panel. 3. Loosen the screw securing the control unit connector. 4. Disconnect the control unit...
Air flow sensor
Note: A defective sensor cannot be repaired. 1. Disconnect the battery. 2. Disconnect the vacuum hose from the EGR valve actuator. 3. Disconnect the flow sensor connector. 4. Loosen the air hose...
Note: A defective sensor cannot be repaired. 1. Disconnect the battery. 2. Disconnect the vacuum hose from the EGR valve actuator. 3. Disconnect the flow sensor connector. 4. Loosen the air hose...
Boost pressure sensor
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Disconnect the pressure supply tube fasteners. 4. Discard the copper sealing washers of the hollow bolt. 5. Move the tube to the...
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Disconnect the pressure supply tube fasteners. 4. Discard the copper sealing washers of the hollow bolt. 5. Move the tube to the...
Injector needle lift sensor
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Disconnect the drain tube from the injector. 4. Disconnect the high pressure pipe from the injector. 5. Discard the drain tube...
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Disconnect the drain tube from the injector. 4. Disconnect the high pressure pipe from the injector. 5. Discard the drain tube...
Speed sensor
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Place the car on a lift. Apply the parking brake. 4. Raise the car. 5. Unscrew the sensor mounting nut. 6. Remove the sensor from the...
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Place the car on a lift. Apply the parking brake. 4. Raise the car. 5. Unscrew the sensor mounting nut. 6. Remove the sensor from the...
Vehicle speed sensor
Note: The sensor is replaced from underneath the vehicle. 1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Loosen the sensor mounting screw. 4. Remove the retaining clip. 5. Remove...
Note: The sensor is replaced from underneath the vehicle. 1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Loosen the sensor mounting screw. 4. Remove the retaining clip. 5. Remove...
Clutch pedal switch
1. Disconnect the battery. 2. Disconnect the wires from the switch. 3. Turn the switch housing to loosen the lock nut. 4. Remove the lock nut. 5. Remove the switch. 6. Installation is carried out in...
1. Disconnect the battery. 2. Disconnect the wires from the switch. 3. Turn the switch housing to loosen the lock nut. 4. Remove the lock nut. 5. Remove the switch. 6. Installation is carried out in...
Brake pedal switch
1. Disconnect the battery. 2. Disconnect the wires from the switch. 3. Loosen the rear lock nut. 4. Remove the front lock nut. 5. Remove the switch. 6. Installation is carried out in reverse order.
1. Disconnect the battery. 2. Disconnect the wires from the switch. 3. Loosen the rear lock nut. 4. Remove the front lock nut. 5. Remove the switch. 6. Installation is carried out in reverse order.
Coolant temperature sensor
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Unscrew the sensor. 4. Dry the sensor seat. 5. Install a new sealing washer. 6. Tighten the sensor to the recommended torque. 7. Add...
1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Unscrew the sensor. 4. Dry the sensor seat. 5. Install a new sealing washer. 6. Tighten the sensor to the recommended torque. 7. Add...
Fuel injection pump lever position sensor (electronic pedal)
Note: The sensor cannot be repaired. 1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Unscrew the accelerator pedal quadrant mounting nut from the sensor and remove the quadrant. 4....
Note: The sensor cannot be repaired. 1. Disconnect the battery. 2. Disconnect the sensor connector. 3. Unscrew the accelerator pedal quadrant mounting nut from the sensor and remove the quadrant. 4....
Electropneumatic modulator
1. Disconnect the battery. 2. Disconnect the modulator connector. 3. Disconnect the three vacuum hoses from the modulator. 4. Unscrew the fastening nut. 5. Remove the modulator. 6. Installation is...
1. Disconnect the battery. 2. Disconnect the modulator connector. 3. Disconnect the three vacuum hoses from the modulator. 4. Unscrew the fastening nut. 5. Remove the modulator. 6. Installation is...
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