Hello, ran into some confusion here when I got to the point of wiring the fuel pump relay to the C203 plug. I'm following the diagram below (which I've upscaled about 2x from the original that's floating around if anyone wants an HD version).
Question is, the relay has five or six wires in it and I assume the ones not pictured get the delete? But there happen to be two orange wires with a black stripe and I don't know how to tell which one I need to punch into the C203.

The relay should only have PCM power and a gnd to the relay coil and power in and out to the fuel pump.

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quote Originally posted by Dennis LaGrua: The relay should only have PCM power and a gnd to the relay coil and power in and out to the fuel pump.

Ok, so then the result would be not having the oil sensor go though the relay correct?

The oil pressure sending unit does not 'go through' the relay.

The power cicuit from C203 to the relay is also attached to the oil pressure sending unit pressure switch .
When engine oil pressure is achieved, the pressure switch in the relay closes to provide a backup power source to the fuel pump in the event that the fuel pump relay fails.

The power to the oil pressure switch is the orange/ black wire, the power from the pressure switch to the pump is the tan/white wire.

I recommend the inclusion of the circuit.

and if you really want the best way to wire up your fuel pump, follow this link to Ryan's "Hot Wire" directions.

http://www.gmtuners.com/fiero/hot_wire.htm

Rob