Oh, I though there was only 2. Let me see if I have this straight. One wire goes to the battery for your power, one wire is for the relay ground, one wire goes to a switched on power source, and when that wire gets grounded it closes the circuit in the relay which sends battery power to the last wire which is connected to the pump? Where is a good place to hook into the switched on power from the ignition switch? The positive wire going to the ignition coil? Where is a good place to mount the relay?
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