Fuel Pressure Check

CAUTION: Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.

NOTE:

Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pressure cannot be completely released because S35 models do not have fuel return system.
Use Fuel Pressure Gauge Kit [SST (J-44321)] to check fuel pressure.

Release fuel pressure to zero.
Install fuel pressure gauge adapter [SST (J-44321-6)] (B) with fuel pressure gauge (A).
- Fuel feed hose (1)
Turn ignition switch ON and check for fuel leakage.
Start engine and check for fuel leakage.
Read the indication of fuel pressure gauge.

Fig 1: Checking Fuel Pressure
Courtesy of NISSAN MOTOR CO., U.S.A.

At idling : Approximately 350 kPa (3.57 kg/cm ² , 51 psi)
If result is unsatisfactory, check fuel hoses and fuel tubes for clogging.
If OK, Replace "fuel filter and fuel pump assembly".

If NG, Repair or replace.