Fuel Pump: Service Precautions

FUEL SYSTEM PRECAUTIONS
^ Before working on the fuel system, disconnect negative (-) terminal cable from the battery.

HINT: Any diagnostic trouble code retained by the computer will be erased when the battery terminal is removed. Therefore, if necessary. read the diagnosis before removing the terminal.

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




1. When disconnecting the high pressure fuel line, a large amount of gasoline will spill out, so observe these procedures:
- Remove the luggage compartment floor mat and trim cover.
- Disconnect the fuel pump connector.
- Start the engine. After the engine has stopped on its own, turn off the ignition switch.
- Put a container under the connection.
- Slowly loosen the connection.
- Disconnect the connection.




- Plug the connection with a rubber plug.
- Reconnect the fuel pump connector.
- Reinstall the luggage compartment trim cover and floor mat.




2. When connecting the flare nut or union bolt on the high pressure pipe union, observe these procedures:

Union Bolt Type:
- Always use a new gasket.
- Tighten the union bolt by hand.
- Tighten the union bolt to the specified torque.

Torque: 29 N.m (300 kgf.cm, 22 ft.lbf)

Flare Nut Type:
- Apply a light coat of engine oil to the flare nut and tighten the flare nut by hand.
- Using SST, tighten the flare nut to specified torque. SST 09631-22020

Torque: 30 N.m (310 kgf.cm, 22 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.
- Never reuse the O-ring.
- When placing a new O-ring on the injector, take care not to damage it in any way.
- Coat a new O-ring with spindle oil or gasoline before installing-never use engine, gear or brake oil.




4. Install the injector to the delivery pipe and intake manifold as shown in the illustration.

Installing Jumper Wire:

5. Check that there are no fuel leaks after doing maintenance anywhere on the fuel system.
- Using SST, connect terminals +B and FP of the DLC1.

SST 09843-18020

- With engine stopped, turn the ignition switch ON.




- Pinch the fuel return hose.
- The pressure in the high pressure line will rise to approx. 392 kPa (4 kgf/cm2, 57 psi).
- In this state, check to see that there are no leaks from any part of the fuel system.

NOTICE: Always pinch the hose. Avoid bending as it may cause the hose to crack.

- Turn the ignition switch to LOCK.
- Remove the SST from the DLC1.

SST 09843-18020