Fuel Line Safety Procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Fuel in the fuel system is under high pressure even when the engine is not running.

Remove the fuel-filler cap and release the pressure in the fuel tank.
Remove the fuel pump relay.
Start the engine.
After the engine stalls, crank the engine several times.
Turn the ignition switch to the LOCK position.
Install the fuel pump relay.

Fig 1: Removing Fuel Pump Relay
Courtesy of MAZDA MOTORS CORP.