Fuel System

Warning: Fuel vapor is hazardous. It can easily ignite, causing injury and damage. Always keep sparks and flames away from fuel.

Hold Pressure
1. Disconnect the negative battery terminal.




2. Install a fuel pressure gauge between the fuel filter and the main fuel hose. (Install clamps as shown.)
3. Connect the negative battery terminal.




4. Ground fuel pump terminal of the DLC by using a jumper wire as shown.
5. Turn the ignition switch ON for 10 sec. to operate the fuel pump.
6. Turn the ignition switch OFF and disconnect the jumper wire.
7. Observe the fuel pressure after 5 min.

Fuel pressure: More than 150 kPa (21 psi)

8. If not as specified, perform the following inspections.
- Fuel pump hold pressure.
- Pressure regulator hold pressure.
- Injector fuel leakage.

Line Presure
1. Disconnect the negative battery cable.

WARNING: Always release fuel pressure before disconnecting a fuel line.




2. Install a fuel pressure gauge between the fuel filter and the main fuel hose. (Install clamps as shown.)
3. Connect the negative battery cable.




4. Ground fuel pump terminal of the DLC by using a jumper as shown.
5. Turn the ignition switch ON.
6. Measure the fuel line pressure.

Fuel line pressure: 260-320 kPa (37-46 psi)

7. If not as specified, perform the following inspections.
- Fuel pump maximum pressure.
- Fuel line clogging and restriction.
- Fuel filter clogging and restriction.
- Pressure regulator hold pressure.