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Home >> Lexus >> 2012 >> IS 250C V6-2.5L (4GR-FSE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Knock Sensor >> Service and Repair >> Removal
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Removal





4GR-FSE ENGINE CONTROL: KNOCK SENSOR: 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 Removal

2. REMOVE INTAKE MANIFOLD

(a) Remove the intake manifold Removal.

3. DISCONNECT WATER HOSE JOINT Removal

4. REMOVE FUEL PRESSURE PULSATION DAMPER ASSEMBLY Removal

5. REMOVE NO. 1 FUEL PIPE Removal

6. DISCONNECT NO. 2 FUEL PIPE SUB-ASSEMBLY Removal

7. REMOVE FUEL PUMP ASSEMBLY Removal

8. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY Removal

9. REMOVE NO. 3 FUEL PIPE SUB-ASSEMBLY Removal

10. REMOVE NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY Removal

11. REMOVE NO. 1 FUEL DELIVERY PIPE SUB-ASSEMBLY Removal

12. REMOVE KNOCK SENSOR

(a) Disconnect the 2 knock sensor connectors.





(b) Remove the 2 bolts and 2 knock sensors.