Miata Fuel Pump Relay Location. Should be located on the fender well under your hood in a black box, the top pops off and the location of your fuel relay should be marked on the box cover. Disconnect the fuel pump resistor and relay connector.
Fuel pump from its bracket. Check (listen) for the main relay clicking in when you turn on the switch. Measure the resistance between terminals a and b by using an ohmmeter.