Knock Sensor: Service and Repair

REMOVAL

CAUTION: Do not allow fuel to spray when removing the pipe between the high pressure side fuel pump and the fuel injectors. The fuel in the pipe is highly pressurized.

1. DISCHARGE FUEL SYSTEM PRESSURE
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

3. REMOVE COOL AIR INTAKE DUCT SEAL
4. REMOVE ENGINE UNDER COVER
5. DRAIN ENGINE COOLANT
6. REMOVE ENGINE ROOM SIDE COVER RH
7. REMOVE V-BANK COVER
8. REMOVE NO. 2 VENTILATION HOSE
9. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE
10. DISCONNECT COLD START INJECTOR
11. REMOVE WATER BY-PASS HOSE
12. DISCONNECT HEATER WATER INLET HOSE
13. DISCONNECT HEATER WATER OUTLET HOSE
14. REMOVE ENGINE REAR COVER
15. DISCONNECT UNION TO CHECK VALVE HOSE
16. DISCONNECT VENTILATION HOSE
17. DISCONNECT FUEL MAIN TUBE
18. REMOVE INTAKE AIR SURGE TANK
19. REMOVE INTAKE MANIFOLD
20. REMOVE FUEL PRESSURE PULSATION DAMPER
21. REMOVE NO. 1 FUEL PIPE
22. DISCONNECT NO. 2 FUEL PIPE
23. REMOVE HIGH PRESSURE SIDE FUEL PUMP
24. REMOVE NO. 2 FUEL PIPE
25. REMOVE NO. 3 FUEL PIPE
26. REMOVE NO. 1 FUEL DELIVERY PIPE
27. REMOVE NO. 2 FUEL DELIVERY PIPE




28. REMOVE KNOCK SENSOR
a. Disconnect the 2 knock sensor connectors.
b. Remove the 2 bolts and 2 knock sensors.

INSTALLATION

1. INSTALL KNOCK SENSOR




a. Install the 2 knock sensors so that they are horizontal as shown in the illustration. Then install the 2 bolts.

Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)

HINT: It is acceptable for the sensor to be titled +10 degrees to -5 degrees.

b. Connect the 2 sensor connectors.

2. INSTALL FUEL INJECTOR SEAL
3. INSTALL INJECTOR
4. INSTALL NO. 2 FUEL DELIVERY PIPE
5. INSTALL NO. 1 FUEL DELIVERY PIPE
6. INSTALL NO. 3 FUEL PIPE
7. CONNECT NO. 2 FUEL PIPE
8. INSTALL HIGH PRESSURE SIDE FUEL PUMP
9. INSTALL NO. 2 FUEL PIPE
10. INSTALL NO. 1 FUEL PIPE
11. INSTALL FUEL PRESSURE PULSATION DAMPER
12. INSTALL INTAKE MANIFOLD
13. INSTALL INTAKE AIR SURGE TANK
14. CONNECT FUEL MAIN TUBE
15. CONNECT NO. 1 VENTILATION HOSE
16. INSTALL ENGINE REAR COVER
17. CONNECT UNION TO CHECK VALVE HOSE
18. CONNECT HEATER WATER OUTLET HOSE
19. CONNECT HEATER WATER INLET HOSE
20. CONNECT WATER BY-PASS HOSE
21. CONNECT COLD START INJECTOR
22. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE
23. CONNECT NO. 2 VENTILATION HOSE
24. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
25. ADD ENGINE COOLANT
26. CHECK FOR ENGINE COOLANT LEAKAGE
27. CHECK FOR FUEL LEAKAGE
a. Start the engine, and check that there are no fuel leaks after performing maintenance anywhere on the system.

28. CHECK FOR ENGINE OIL LEAKS
a. Start the engine, and check that there are no oil leaks after performing maintenance.

29. INSTALL V-BANK COVER
30. INSTALL ENGINE ROOM SIDE COVER RH
31. REMOVE COOL AIR INTAKE DUCT SEAL
32. REMOVE ENGINE UNDER COVER
33. PERFORM INITIALIZATION
a. Perform initialization.

NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

34. WARM UP ENGINE
a. After the engine is warmed up, check that the maintained parts operate normally.