Wiring question

[treyh]

I recently got a 91 gt as a project. no motor or trans. it appeared to have the engine wire harrness but after i started takeing stuff apart i realize it wasn't in to good of shape. so i was wondering were would be the best place to get a new one. painless?? junkyard?? and it appeared the lights and windows, ect. were on a different harrness?? Thanks

 

[tbovee]

They come up on ebay every now and then. I got mine from Ebay. There's 3 or 4 sections to it if I remember right. main section, injector harness, )2 harness and I think an a/c harness. In my opinion one from painless is more of a universal type. I don't think they are set up for emissions.
Fordfuelinjection.com used to make one too. I'm sure others will chime in with more information.

 

[treyh]

well im not runing a/c so does that mean i don't need that section?

 

[jrichker]

Diagram courtesy of Tmoss & Stang&2birds
Engine EFI harness:

Main Chassis EFI Harness:

See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.

Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

Complete computer, actuator & sensor wiring diagram for 88-91 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif

TFI module differences & pinout
http://www.veryuseful.com/mustang/tech/engine/images/TFI_5.0_comparison.gif

Fuse box layout
http://www.veryuseful.com/mustang/tech/engine/images/MustangFuseBox.gif