Toyota 23209-39015
Injector

Before removing the 1GR-FE fuel injector users must discharge fuel system pressure while disconnecting the negative cable terminal. Both engine coolant draining and V-bank cover together with air cleaner assembly removal need to happen before proceeding. The throttle body bracket is first detached by unbolt the two pieces before removing the oil baffle plate requires detaching one bolt. The next step involves removing both the No. 1 surge tank stay and the No. 2 surge tank stay after unbolted with their respective two bolts. The intake air surge tank requires removal by disconnecting its 2 water by-pass hoses as well as the fuel vapor feed hose and ventilation hose and the 2 VSV connectors and throttle body with motor connector. Use a socket hexagon wrench 8 to disconnect the 4 bolts which secure both the intake air surge tank and gasket while also removing two nuts simultaneously. Detach the hose clamp and wire harness clamps before you separate all those items from each other. The fuel pipe disconnection requires removing of the No. 2 clamp, folding the tube connector, and extracting the pipe from the delivery pipe without letting contaminants affect the connector. Execute this protocol once more for the No. 2 fuel pipe sub-assembly. Remove the fuel delivery pipe sub-assembly with care when you disconnect the 6 fuel injector connectors and remove the 6 bolts to get the fuel delivery pipe with the entire set of 6 fuel injectors. After disconnecting the 6 injectors from the delivery pipe remove them entirely.

Reinstall the 3 wire harness clamps and hose clamp, connect the throttle motor connector, the 2 VSV connectors, the ventilation hose, the No4 and No5 water by-pass hoses, and the air cleaner assembly.

Take off the 2 nuts and pull it straight upward.

Repeat the same process for fuel pipe sub-assembly N0.2.

Repeat the process for the No. 1 fuel pipe sub-assembly.

Install the air cleaner assembly, reconnect ventilation hose No.2, install the V-bank cover, add engine coolant, and check for leaks in both the engine coolant and fuel systems.

Use 2 new gaskets and secure the fuel main hose with the fuel pressure pulsation damper, torqued to 39 Nm (400 kgf-cm, 29 ft-lbf).

Remove the intake air surge tank by disconnecting the No. 5 and No. 4 water by-pass hoses, the fuel vapor feed hose, the ventilation hose, the 2 VSV connectors, and the throttle motor connector.

Separate the 3 wire harness clamps and the hose clamp.

Place a new insulator on each injector, apply a light coat of spindle oil or gasoline to new O-rings, and install them onto the fuel delivery pipe while ensuring the connectors face outward.

Install a new gasket on the intake air surge tank, then use a socket hexagon wrench 8 to secure it with 4 bolts at a torque of 28 Nm (286 kgf-cm, 21 ft-lbf) and install 2 nuts at the same torque.

Remove the harness clamp bracket and the 2 bolts to take out the fuel delivery pipe with the injectors, being careful not to drop them.

Push in the tube connector until it clicks, checking for damage or foreign objects, and install the fuel pipe clamp.