Fuel Pump

REMOVAL & INSTALLATION

Protégé

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve the fuel pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Rear seat cushion
   • Fuel pump/sending unit electrical connector
   • Fuel pump/sending unit access cover
   • Fuel supply and return hoses from the fuel pump/sending unit
   • Fuel pump/sending unit from the fuel tank
   • Sending unit electrical connector
   • Sending unit from the fuel pump assembly

   To install:

4. Install or connect the following:
   • Sending unit to the fuel pump assembly
   • Sending unit electrical connector
   • Fuel pump/sending unit into the fuel tank with a new gasket
   • Fuel supply and return lines
   • Access cover
   • Sending unit electrical connector
   • Rear seat cushion
   • Negative battery cable
5. Start the engine and check fuel leaks.

Miata

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Rear package trim
   • Service hole cover
   • Fuel pump cover
   • Fuel pump connector
   • Fuel hoses
   • Fuel pump and gauge sender unit as an assembly
   • Fuel pump from the sender bracket

   To install:

4. New O-ring set
5. Fuel pump to the sender bracket

   NOTE: Pull the fuel pump down so that it is tight against the bracket.

6. Fuel pump and gauge sender unit as an assembly
7. Fuel hoses
8. Fuel pump connector
9. Fuel pump cover
10. Service hole cover
11. Rear package trim
12. Negative battery cable

Millenia, 626 and MX-6

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve the fuel system pressure.
3. Disconnect the negative battery cable.
4. Drain the fuel from the tank.
5. Loosen the fuel tank retaining clamps.
6. Remove or disconnect the following:
   • Hoses from the fuel tank
   • Fuel pump electrical connector
   • Fuel tank heat shield
   • Fuel tank support brackets by supporting the fuel tank
   • Fuel tank
   • All fuel hoses from the fuel pump unit
   • Fuel pump ring by turning counterclockwise
   • Fuel pump and gaskets from the fuel tank

     Fig. 1: Exploded view of the fuel pump assembly — 626 and MX-6

   To install:

7. Install or connect the following:
   • Fuel pump using a new gasket
   • Fuel pump ring by turning it clockwise until the flange hits the stopper
   • Fuel hoses to the fuel pump
   • Fuel tank
   • Fuel tank support brackets
   • Fuel tank heat shield
   • Fuel pump electrical connector
   • Hoses to the fuel tank
   • Fuel tank retaining clamps
   • Negative battery cable
8. Add a minimum of 10 gallons of fuel to the tank and check for leaks.