Isuzu Trooper - Isuzu Trooper
1. Maintenance instruction
2. Maintenance
3. Engines
4. System of decrease in toxicity
5. Fuel system
   5.1. Precautionary measures
   5.2. Order of depressurization of fuel system
   5.3. Mechanical fuel pump
   5.4. Electric fuel pump
   5.5. Removal and installation of the pump mounted in the fuel tank
   5.6. Adjustment of the carburetor
   5.7. Removal and installation of the carburetor
   5.8. Systems of injection of fuel
      5.8.1. Systems of injection of 4-cylinder engines
      5.8.2. Features of system of injection of 6-cylinder engines
      5.8.3. Knots and units of system of injection
      5.8.4. Precautionary measures at service of fuel system
      5.8.5. Replacement of knots and units of system
   5.9. Power supply system of diesels
6. Transmission and running gear
7. Suspension bracket and steering
8. Brake system
9. Body
10. Body electric equipment
11. Diagnostics of malfunctions
12. Electrical circuitries

Isuzu Trooper>> Fuel system>> Systems of injection of fuel>> Precautionary measures at service of fuel system

5.8.4. Precautionary measures at service of fuel system


Hit of moisture on any details and sockets of electric equipment of fuel system is not allowed. Special attention should be paid to such knots as the block of protective relays and the socket of the switch of a butterfly valve which is not waterproof and at hit of moisture fails.

Before charging the battery should be removed from the car. It is forbidden to disconnect the battery from weight on the working engine as because of sharp power surge the processor block and devices of automatic control can fail.

When replacing details or when checking system be convinced that the ignition key is in position of OFF. If it is necessary to measure tension on the control unit cable socket (or the processor block) that at first disconnect all wires then transfer the ignition key to position of ON from the block.

When checking details of electric equipment the tester forbids to rest the tester probe against a socket conclusion, otherwise a conclusion can be sdeformirovat and the contact will be broken. To attach the probe to the socket only from wires.

Conclusions of sockets of nozzles, switch of a butterfly valve, air regulator of idling and sensor of temperature self-locking. For a rassoyedineniye of such sockets it is necessary to pull a reciprocal part of the socket, at the same time slightly shaking in the parties.

Low-voltage cables it is necessary to have not less than in 100 mm from the wires which are under high voltage. In bulk, the control unit socket is not allowed to check percussion such details as the sensor of measurement of a stream of air, the sensor of an angle of rotation cranked. Details of system of injection of fuel are established with high precision. The slightest violation of their installation will cause considerable deterioration in characteristics of the engine.

It is forbidden to turn on the fuel pump empty, otherwise pump details quickly wear out (fuel provides lubricant of the rubbing pump details). It is forbidden to use other fuel, than gasoline.