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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Before Service Precaution >> Fuel Line Safety Procedure
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Fuel Line Safety Procedure

  1. Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the fuel-filler cap to release the pressure inside the fuel tank.
  3. Remove the fuel pump relay.
    Fig 1: Identifying Relay And Fuse Block
    G10946814Courtesy of MAZDA
  4. Disconnect the high pressure fuel pump connector. (Refer to HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION .)
  5. Connect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  6. Start the engine.
  7. After engine stall, crank the engine 2 to 3 times repeatedly and verify that the engine idling condition is not maintained. (to relieve pressure in fuel pipe)
  8. Switch the ignition to off.
  9. Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  10. Install the fuel pump relay.
  11. Connect the high pressure fuel pump connector. (Refer to HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION .)
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