Removal

3MZ-FE ENGINE CONTROL SYSTEM: KNOCK SENSOR:

REMOVAL

1. DISCHARGE FUEL SYSTEM PRESSURE (Testing and Inspection)

2. DRAIN ENGINE COOLANT (Service and Repair)

3. REMOVE V-BANK COVER SUB-ASSEMBLY (Removal)

4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
5. REMOVE EMISSION CONTROL VALVE SET
6. REMOVE INTAKE AIR SURGE TANK
7. REMOVE INTAKE MANIFOLD
(a) Disconnect the fuel pipe No. 1.





(1) Remove the fuel pipe clamp.





(2) Pinch the tube connector and then pull out the fuel pipe No. 1.

- Check the connector for dirt, mud or other contamination. Clean if necessary.
- Be sure to keep the tube connector, pipe and O-ring clean. They can become contaminated easily.
- Do not use tools when disconnecting the fuel pipe.
- Do not bend or twist the nylon tube. Protect the connector by covering it with a vinyl or plastic bag.
- When the pipe and the connector are stuck, push and pull the connector to release it. Then pull the connector out carefully.





(b) Lock the hose clamp, as shown in the illustration.
(c) Disconnect the heater inlet water hose.





(d) Remove the nut and disconnect the ground cable.
(e) Disconnect the 6 fuel injector connectors.





(f) Loosen and remove the intake manifold's 9 bolts and 2 nuts uniformly in the numerical order shown in the illustration.
(g) Remove the intake manifold.

NOTE: Fully removing each bolt and nut one by one may damage the intake manifold, bolts and nuts.

8. REMOVE ENGINE MOVING CONTROL ROD
9. REMOVE WATER OUTLET





(a) Disconnect the radiator hose inlet.





(b) Disconnect the ECT sensor connector.
(c) Remove the clamp.
(d) Remove the 2 bolts, 2 nuts and 2 washers.
(e) Lock the hose clamp as shown in the illustration. Then remove the water outlet together with the water by-pass hose No. 1.
(f) Remove the 2 gaskets from the 2 cylinder heads.
10. REMOVE KNOCK SENSOR





(a) Disconnect the 2 knock sensor connectors.
(b) Remove the 2 nuts and 2 knock sensors.