High Pressure Line Pipe Removal Note

Drain engine coolant. (See ENGINE COOLANT REPLACEMENT [L3 WITH TC] ).
Disconnect the high pressure line pipe of the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [L3 WITH TC] .)

Fig 1: Disconnecting High Pressure Line Pipe Of High Pressure Fuel Pump
Courtesy of MAZDA MOTORS CORP.
1. Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
2. Loosen the high pressure line pipe installation nut.
Remove the high pressure line pipe.