Does anyone know what this connector does?

[spooldup]

I found it unplugged directly underneath the power wires that are on the firewall. It's a single brown wire with a single black connector. You can see the connector right above the red part of the tranny dipstick. It's sitting in between that and the red power wire.

 

[leroy]

Looks like the fuel pump relay test connection. I believe the wire should be gray.

Jim

 

[spooldup]

so it should not be plugged in i guess right?

 

[leroy]

It's not plugged in normally.

Jim

 

[myclone]

Not if thats the fuel pump test connection. If it is then its only used to test the fuel pump by applying +12v to it.

I dunno for sure if thats it as I cant find the damn FP test connector on myclone. :roll:

 

[Blake]

Mine was doubled over and hidden in the harness on my Ty, David.

Oh, uhh....Don't try to start the truck with that wire hooked up to 12 volts. Pops fuses :roll:
Not that I did that or anything. :wink:
Blake

 

[myclone]

Mine was doubled over and hidden in the harness on my Ty, David.
Blake

As in tucked inside the split loom that covers the harness? If so then NO WONDER I cant find the damn thing. UGH. :roll:

 

[Blake]

Yep! GM's continuity sucks.
Blake

 

[leroy]

I've used the connection on a few trucks to power accessories I want powered when the truck is running. (water injection, 2nd fuel pump)

Jim