Technician Safety Information

SFI SYSTEM

1. Before working on the fuel system, disconnect the negative (-) terminal cable from the battery.

HINT: Any diagnostic trouble coda retained by the computer will be erased when the negative (-) terminal cable is disconnected. Therefore, if necessary. read the diagnosis before disconnecting the negative (-) terminal cable from the battery.

2. Do not smoke or work near an open flame when working on the fuel system.
3. Keep gasoline away from rubber or leather parts.

FUEL SYSTEM

1. When disconnecting the high fuel pressure line, a large amount of gasoline will spill out. so observe these procedure:
(a) Disconnect the fuel pump connector.
(b) Start the engine. After the engine has stopped on its own, turn off the ignition switch.
(c) Put a container under the connection.
(d) Slowly loosen the connection.
(e) Disconnect the connection.





(f) Plug the connection with a rubber plug.
(g) Reconnect the fuel pump connector.
2. When connecting the flare nut or union bolt on the high pressure pipe union. observe these procedure:





Union bolt type:
(a) Always use a new gasket.
(b) Tighten the union bolt by hand.
(c) Tighten the bolt to the specified torque.

Torque: 29.5 N.m (300 kgf.cm, 22 ft.lbf)

Flare nut type:
(a) Apply a light coat of oil on the flare and tighten the flare nut by hand.





(b) Using SST, tighten the flare nut to the specified torque. SST 09631-22020

NOTICE: Do not rotate the fuel pipe, when tightening the flare nut.

Torque: 30 N.m (300 kgf.cm, 23 ft.lbf)

HINT: Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).





3. Observe the following precautions when removing and installing the injectors.
(a) Never reuse an O-ring.
(b) When placing a new O-ring on the injector, take care not to damage it in any way.
(c) Coat the new O-rings with spindle oil or gasoline before installing-never use engine. gear or brake oil.





4. Install the injector in the delivery pipe and cylinder head as shown in the illustration.
5. Check that there are no fuel leaks after performing maintenance anywhere on the fuel system.
(a) Remove the fuse cover on the instrument panel.





(b) Connect the TOYOTA hand-held tester to the DLC3.
(c) Turn the ignition switch ON and TOYOTA hand-held tester main switch ON.

NOTICE: Do not start the engine.

(d) Select the active test mode on the TOYOTA hand-held tester.
(e) Please refer to the TOYOTA hand-held tester operator's manual for further details.
(f) If you have no TOYOTA hand-held tester. connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
(g) Check that there are no leaks from any part of the fuel system.
(h) Turn the ignition switch to LOCK.
(i) Disconnect the TOYOTA hand-held tester from the DLC3.
(j) Install the fuse cover on the instrument panel.
6. Start the engine.

NOTICE: Keep cranking the engine until the air is removed from the fuel line.

7. After the engine starts, check again that there are no fuel leaks.