MPV LX 4WD V6-3.0L SOHC (1997)
Fuel Pressure: Testing and Inspection
Fuel Pressure Hold Inspection
WARNING: Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate the
skin and eyes. To prevent this, always complete the "FUEL PRESSURE RELEASE PROCEDURE".
1. Disconnect the negative battery cable.
2. Connect a fuel pressure gauge between the fuel filter (high pressure side) and fuel distributor.
3. Connect the negative battery cable.
4. Connect the data link connector terminals F/P and GND by using a jumper wire.
5. Turn the ignition switch to ON for approx. 10 sec. to operate the fuel pump.
6. Turn off the ignition switch. Wait for 5 min., and measure the fuel pressure.
Specification: More than 150 kPa (21 psi)
7. Disconnect the jumper wire.
8. If the pressure is lower than specified, measure the fuel line pressure while pinching the return hose.
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If the fuel line pressure holds, replace the pressure regulator. (Refer to FUEL PRESSURE REGULATOR/SERVICE AND REPAIR.)
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If the fuel line pressure does not hold, check the fuel pump fuel pressure hold.
If the fuel pump fuel pressure hold is normal, check the fuel leaks from fuel line and fuel injector.
9. If the pressure is as specified, check the fuel leakage from fuel line and fuel injector.
