1999 Mitsubishi Mirage • 4 cylinder 2WD Manual • 176,000 miles

How to replace a fuel pump in a 99 Mitsubishi Mirage?
December 1, 2010.

Here are the directions I was able to get for you.

Relieve the fuel system pressure.
Disconnect negative battery cable.
The fuel pump is located in the fuel tank. Remove the access cover located in the rear floor pan.
Partially drain the fuel tank into an approved gasoline container.
Remove the electrical connector from the fuel pump.
Remove the overfill limiter (two-way valve), as required.
Remove the high pressure fuel hose connector.
Remove the six pump retaining bolts and remove the fuel pump and gauge assembly from the tank by lifting up on it. Note positioning of pump prior to removal from tank.

To replace it, align the 3 projections on the packing with the holes on the fuel pump and the nipples on the pump facing the same direction as before removal. Install the retainers and tighten to 2 ft. Lbs.
Install the high pressure hose connection and tighten to 29 ft. Lbs.
Install the overfill limiter (two-way valve) and the electrical connector to the fuel pump.
Fill the fuel tank with the gasoline removed during this procedure.
Reconnect the negative battery cable and check the entire system for leaks.
Install the access cover into place.

Let me know if this helps. I have also attached pictures of pump location and the access port.