Fuel Pump Unit Inspection - Mazda RX-8 Manual

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FUEL PUMP UNIT INSPECTION

Fuel Pump Operation Inspection

Without Using WDS or equivalent

Shorting the wrong terminal of the check connector may cause malfunctions. Make sure to short only

the specified terminal.

1. Ground the check connector terminal F/P using the jumper wire.

2. Remove the fuel filler cap.

3. Turn the ignition switch to the ON position and verify that the fuel pump can be heard operating.

If it cannot be verified, inspect for a voltage of 3.76    5.28 V on the fuel pump wiring harness-

side connector terminal B.

If it is within the specification, inspect the following.

If not within the specification, inspect the following.

Fuel pump continuity inspection

Wiring harness between fuel pump terminal D and GND

Fuel pump relay

Wiring harnesses, connectors between main relay, fuel pump relay, and check

Wiring harnesses, connectors between fuel pump relay, fuel pump resistor, and

Engine Specifications