ES 300 V6-3.0L (3VZ-FE) (1992)
Connecting Pressure Gauge
- Install pressure gauge to the cold start injector with three new gaskets and the union bolt.
Torque: 15 Nm (150 kgf.cm. 11 ft.lbs)
- Wipe off any splattered gasoline.
- Remove jumper wire.
- Turn the ignition switch OFF.
- If there is no pressure. check the following parts:
^ Fusible link
^ Fuses (AM2 30A, EFI 15A, IGN 7.5A)
^ SFI main relay
^ Fuel pump
^ ECM
^ Wiring connections
- Using a suitable jumper wire, connect terminals +B and FP of the data link connector 1.
- Reconnect the battery negative (-) cable.
- Turn the ignition switch ON.
- Measure the fuel pressure.
Fuel pressure: 265-304 kPa (2.7-3.1 kgf/cm2, 38-44 psi)
- If pressure is high, replace the fuel pressure regulator.
- If pressure is low, check the following parts:
^ Fuel hoses and connection
^ Fuel pump
^ Fuel filter
^ Fuel pressure regulator
^ Injector
- Remove jumper wire.
- Start the engine.
Fuel Pressure Test - No Vacuum To Regulator
- Disconnect the vacuum sensing hose from the fuel pressure regulator, and plug the hose end.
- Measure the fuel pressure at idle.
Fuel pressure: 265-304 kPa (2.7-3.1 kgf/cm2, 38-44 psi)