Want to add a fuel pump switch...what wire
there is a wire under that dash that is supposed to control the fuel pump relay. what wire is this and where is it located? i REALLY need to get this done.
i just put in a switch recently, the spyder does a really good write up here
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-fuel-cut-switch-write-up-pictures-343361/
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-fuel-cut-switch-write-up-pictures-343361/
Fuel Pump Kill Switch How-to
This picture from the FSM shows the Circuit Opening Relay that turns the fuel pump off if the engine stalls. It’s a located under the dash next to the steering column and has a yellow base, so you can’t miss it.

The B wire (black with a white stripe) is the power supply from the 15A ENGINE fuse and the Fp wire (blue with a red stripe) goes to the fuel pump. The switch can go into either of these wires, it doesn’t matter which. Simply cut the wire, extend each cut end to your chosen switch location using the same or thicker gauge wire and terminate them onto the switch. Note that the STA wire is also black with a white stripe, but it’s thinner. Make sure you get the right wire.
This picture from the FSM shows the Circuit Opening Relay that turns the fuel pump off if the engine stalls. It’s a located under the dash next to the steering column and has a yellow base, so you can’t miss it.
The B wire (black with a white stripe) is the power supply from the 15A ENGINE fuse and the Fp wire (blue with a red stripe) goes to the fuel pump. The switch can go into either of these wires, it doesn’t matter which. Simply cut the wire, extend each cut end to your chosen switch location using the same or thicker gauge wire and terminate them onto the switch. Note that the STA wire is also black with a white stripe, but it’s thinner. Make sure you get the right wire.
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