1992 F-150 4.9L Inline-Six, searching for the EEC Relay. I looked on the firewall near the EEC TEST like the book said, and it's not what matches up with the relay I bought from the auto parts store. I'm dumbfounded.

 

Should be located in the engine compartment relay panel just aft of the airfilter box.

 

Nope, not there. It's just 2 fuel pump relays and the Horn relay. I thought the same thing, but it ain't.

 

There is not 2 fuel pump relays. One of those is the eec relay.

 

The book is showing 2 fuel pump relays, and a horn. I tested all of those and they are good. The book says its connection is a brown wire harness.

 

Fuel pump relay wire is color coded yellow and green I believe.Maybe someone spliced in a different relay socket?

 

This truck is factory, my dad bought it brand new, an gave it to me on my 16th birthday. There's been no electronic modification at all, it's never been messed with, so I'm kinda just stumped here.

 

I don't know what book you're reading but there aren't two fuel pump relays. The computer relay does give signals to the fuel pump relay though.

 

Should help, this is for a 96 but the relay location is the same