A\C on a carbed 88 LX??

stang5_o2002

New Member
Dec 16, 2007
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I've got an 88 lx that I've converted over to a carb set up. I sold all the fuel injection stuff, but I do have an old speed density engine harness laying here. Im trying to get the a\c to work on the car, but trying to sort out the mess of wires is a nightmare. Especially since it all runs through the computer. Anyway, does anyone know what I need to do to get the a\c system to work without the computer. I dont need things like the WOT relay but they are all wired together and all go to the computer harness. Im usually not to bad with minor wireing and such, but I dont know much about wiring up and a\c system.

Thanks
 
Diagram courtesy of Tmoss & Stang&2birds
fuel-alt-links-ign-ac.gif


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring Mustang FAQ - Engine Information Everyone should bookmark this site.

All the circuit info you need is available on 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

All the circuit ifo you need is available on the