Question 1

How to remove the fuel injector on Toyota Camry?

Accepted Answer

Discharging fuel system pressure must be the first step before removing a 2AZ-FE engine fuel injector. After disconnection from the negative battery terminal users must remove the air cleaner cap sub-assembly and the No. 1 engine cover sub-assembly. The fuel tube sub-assembly requires disconnection through the removal of the No. 1 fuel pipe clamp after checking for debris on both the pipe and connector area. If the connector proves difficult to remove, pinch the connector to disconnect it manually and then clean the sealing surface. Users must detach the fuel tube from its clamp on the fuel hose before disconnecting the No. 2 ventilation hose from the ventilation valve. After disconnecting the 4 fuel injector connectors the procedure calls for the removal of the wire harness clamps and 2 bolts to take out the fuel delivery pipe together with the 4 fuel injectors while being cautious of dropping them. The last step involves removal of the 2 delivery pipe spacers and 4 insulators from the cylinder head before extracting 4 injectors from the delivery pipe along with their 4 O-rings.

Question 2

How to remove the fuel injectors on Toyota 4Runner?

Accepted Answer

Starting with fuel system pressure discharge and negative battery cable removal it becomes possible to remove 1GR-FE engine fuel injectors. The first step requires draining engine coolant followed by eliminating the V-bank cover. You should start by disconnecting the No. 2 ventilation hose together with separate removal of the air cleaner assembly. The 1GR-FE engine requires separation of the intake air surge tank by disconnecting all components including No. 5 and No. 4 water by-pass hoses, fuel vapor feed hose, ventilation hose and 2 VSV connectors with the throttle motor connector. To remove the surge tank disconnect its three wire harness clamps and hose clamp while removing the three upper bolts securing surge tank stays and throttle body bracket. Deliver the surge tank detachment and its gasket by using a 8 mm socket hexagon wrench to remove 4 bolts with 2 nuts. The fuel pipe sub-assembly No. 1 requires disconnecting by removing fuel pipe clamps while pinching tube connectors and pulling the pipe out in a manner that avoids dirt or foreign matter entering the fuel tube connector. Repetitions of this procedure will occur for the Number 2 fuel pipe subsection. The disconnect process for both fuel pipes should be followed by removing the fuel delivery pipe sub-assembly after disconnecting the 6 fuel injector connectors and taking out the 6 bolts while maintaining injector safety. Draw the 6 injectors completely out from the delivery pipe as the final step.

Question 3

How to install the fuel injector assembly on Toyota Tacoma?

Accepted Answer

Before installing the fuel injector assembly you must apply gasoline or spindle oil to new O-rings then place the rings onto each fuel injector. Before mounting the fuel delivery pipe with fuel injector, apply gasoline or spindle oil lightly to the contact areas of the delivery pipe and injector O-ring. Then repeat the oil application to the O-ring before fitting it onto the delivery pipe by rotating it correctly to ensure the O-ring remains unbent and undamaged. The fuel injector must rotate flawlessly during this check. If there is any resistance to rotation then you should replace the O-ring. The procedure requires light application of gasoline or spindle oil onto new O-rings before installing them on delivery pipe spacers before proceeding to place 4 vibration insulators on the cylinder head surface and the 2 delivery pipe No. 1 spacers. Install the fuel delivery pipe with its 4 fuel injectors then provisionally tighten the 2 bolts but maintain the fuel injectors from dropping. Before finally tightening the 2 bolts use the torque wrench to set them at 12 Nm (122 kgf-cm, 9 ft-lbf). Install the harness clamp bracket with its bolt torqued to 8.2 Nm while you connect the wire harness clamp with the compressor magnetic clutch connector (with AIR CONDITIONING) and engine wire harness clamp and VSV connector and 4 injector connectors. Before checking the connection by pulling the fuel hose connector and pipe, make sure to check for scratches and foreign objects on both pieces while you push down the checker of the fuel hose. Align the fuel hose connector with the pipe stem and then push the connector into the stem until the retainer clicks. Rephrase this step for achieving the same result with fuel hose No. 2. The throttle assembly with motor body needs installation along with the intake air connector while the cable must have a torque connection at the negative battery terminal set at 3.9 Nm (40 kgf-cm, 35 in-lbf). The maintenance process requires engine coolant addition to check for leakage and fuel leakage. The vehicle needs the engine under cover sub-assembly No.1 to be put into position last in this process.

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