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Home >> Mazda >> 2022 >> 3 Base >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System (VIN 7/VIN L) >> Before Service Precaution >> Fuel Line Safety Procedure

Fuel Line Safety Procedure

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
  2. Remove the fuel-filler cap to release the pressure inside the fuel tank.
  3. Remove the fuel pump relay.
    G14579146Courtesy of MAZDA MOTORS CORP.
  4. Disconnect the high pressure fuel pump connector.
  5. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
  6. Start the engine.
  7. After the engine stalls, crank the engine 2-3 times.
  8. Switch the ignition to off.
  9. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
  10. Install the fuel pump relay.
  11. Connect the high pressure fuel pump connector.
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