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Fuel System Pressure Release: MPV

WARNING: Fuel in the fuel system is under high pressure also when the engine is not running.
  1. Remove the fuel-filler cap and release the pressure in the fuel tank.
  2. Remove the fuel pump relay. See Fig 1.
  3. Start the engine.
  4. After the engine stalls, crank the engine several times.
  5. Turn the ignition switch to LOCK position.
  6. Install the fuel pump relay.
Fig 1: Locating Fuel Pump Relay - MPV
G00256269Courtesy of MAZDA MOTORS CORP.