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Home >> Mazda >> 1995 >> RX7 2RTR-1308cc 80 >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Fuel Pressure >> Testing and Inspection >> Fuel Line Pressure Inspection
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Fuel Line Pressure Inspection




WARNING: Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedures." Service and Repair

Fuel Line Pressure Inspection
1. Disconnect the negative battery cable.




2. Install a fuel pressure gauge as shown in the figure.
3. Connect the negative battery cable.




4. Connect data link connector terminals F/P and GND with a jumper wire.
5. Turn the ignition switch ON.
6. Measure the fuel line pressure.

Fuel line pressure: 246-264 kPa (35.6-38.4 psi)

Pressure low:
- Measure fuel pump maximum pressure. If as specified the fuel line or fuel filter might be clogged or restricted.

Pressure high:
- Replace the pressure regulator.


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