Fuel Pressure: Testing and Inspection

1. Relieve fuel pressure.
2. Separate air cleaner assembly from throttle body and shift its position.
3. Disconnect fuel feed hose from throttle body and fuel feed pipe.

CAUTION: A small amount of fuel may be released after fuel line is disconnected. In order to reduce chance of personal injury, cover fitting to be disconnected with a shop cloth. Place that cloth in an approved container when disconnection is completed.





4. Connect special tools and hose between throttle body and fuel feed pipe as shown in the above image, and clamp hoses securely to ensure no leaks occur during checking.

Special Tool (A): 09912-58441l, (B): 09912-58431, (C): 09912-58490, (D): 09356-75147-6000 (spare part)

5. Install air cleaner assembly to throttle body and cylinder head cover.
6. Start engine and warm it up to normal operating temperature. If engine doesn't start, turn ignition switch ON to operate fuel pump and after 2 seconds turn it OFF. Repeat this 3 or 4 times and then check fuel pressure.

NOTE: Check that battery voltage is 11V or more before operating fuel pump.





7. Measure fuel pressure under each of the following conditions. If measured pressure doesn't satisfy specification, refer to "Diagnostic Flow Chart B-3" and check each possibly defective part. Replace if found defective.
8. Relieve fuel pressure.
9. Remove fuel pressure gauge, hose & 3-way joint after removing air cleaner assembly.
10. Connect fuel feed hose to throttle body and clamp it securely.
11. Install air cleaner assembly.
12. With engine "OFF" and ignition switch "ON", check for fuel leaks.