Isuzu KB P190. Manual — part 386

FUEL SYSTEM (4JK1/4JJ1) 6C-3

Explanations on functions and operation

Fuel system diagram

RTW76CMF000101

Legend

1. Fuel Rail

2. Fuel Pressure Limiter

3. Leak Off Pipe

4. Fuel Injector

5. Fuel Return Pipe

6. Fuel Cooler

7. Fuel Tank

8. Fuel Pump and Sender Assembly

9. Fuel Filler Cap

10. Check Valve

11. Fuel Feed Pipe

12. One Way Valve

13. Fuel Filter With Sedimenter

14. Switch; Clogging Monitoring

15. Fuel Supply Pump

6C-4 FUEL SYSTEM (4JK1/4JJ1)

Fuel rail assembly

RTW76CLF000601

Legend

1. Fuel Pressure Limiter

2. Fuel Rail Pressure Sensor

FUEL SYSTEM (4JK1/4JJ1) 6C-5

Fuel supply pump

RTW56CLF000301

Legend

1. Fuel Temperature Sensor

2. Suction Control Valve

3. High Pressure Pipe

4. Camshaft Key

5. Camshaft Nut

6C-6 FUEL SYSTEM (4JK1/4JJ1)

Fuel injector

RTW76CMH000201

Legend

1. Terminal

2. Fuel Injector ID Code

3. Two Dimensional Barcode

4. Parts Number

5. Port for Mounting the Injection Pipe

6. O-ring

Fuel filter

RTW76CSH001001

Legend

1. Element

2. Air Bleeding Plug

3. Switch; Clogging Monitoring

4. Sensor;

Water

5. Drain

Plug

Functional check

Air bleeding

1. Ignition switch is turned to the ON position for 15

seconds.

2. Ignition switch is turned to the OFF position.

3. The above operation is repeated 5 times.

Note: If the air bleeding work is insufficient then it could
lead to faults in the engine. Therefore, the procedures
after starting the engine should always be implemented.

Water drain

A warning lamp will light up if water above the specified
volume collects in the sedimenter. In such cases, drain
out the water by performing the following operations:

1. Draining with fuel filter drain plug.

a. Set a container at the tip of the plastic hose.

b. Loosen the air bleeding plug and the drain plug.

c. Discharge the water.

d. Tighten the drain plug after discharging the

water.

e. Tighten the air bleeding plug to the specified

torque.

Tightening torque: 3 N

⋅m(0.3 kg⋅m/26 lb in)

f. Ignition switch is turned ON for 15 seconds

check for fuel leakage.