Anyone know what this is?

[347strokin]

I've got my motor all wired up now with a PSI harness.

Now I'm sorting out the factory truck wiring. Does anyone know what this electric connection is that is mounted to the firewall that is above and to the right of the heater core hoses? Is it a relay for something?

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[foamypirate]

Fuel pump relay and associated wiring for the TBI fuel pumps. You can dump it all if your PSI harness has a relay and lead built in. There is a tan/white wire leading from there into the bulkhead connector on the firewall, left side. That is what you would tie the fuel pump wire from your PSI harness into. Don't tie into the tan/white on the right hand side of the bulkhead though, that's the feed back out to the pump (if single tank), or back and over into the firewall to the dash switch for dual tanks.

 

[347strokin]

Fuel pump relay and associated wiring for the TBI fuel pumps. You can dump it all if your PSI harness has a relay and lead built in. There is a tan/white wire leading from there into the bulkhead connector on the firewall, left side. That is what you would tie the fuel pump wire from your PSI harness into. Don't tie into the tan/white on the right hand side of the bulkhead though, that's the feed back out to the pump (if single tank), or back and over into the firewall to the dash switch for dual tanks.

Awesome. Exactly the info I needed. Thanks a lot for the details!!