86 5.0 Wiring Help? (Coil)

Hisser

New Member
May 9, 2009
3
0
0
Currently - I'm doing a 68 Shelby Convertible tribute.
Have a 5.0 EFI (speed density) motor from an 86 Fox mounted, ready to go.

Problem - A guy gave me a modified wiringness ( based on painless supposedly) that he integrated into a single main harness. Well, the FPR doesn't work and injectors wont open. He says the 3 computers I have are bad. Hard to believe

So I now have my original 86 main harness back. There is no coil wiring on this harness? I beleive the coil wiring was a part of the another harness I don't have. I"m trying to figure out how to run separate wiring (if possible) or splice in the coil lines into this original harness. I do have the fuseable link wiring in both harnesses so I thought I could cut the coil wires from the bad harness and splice them into the original. However I cannot find the other wire (ground? - the hot line is green w red stripe) in the original wiring harness? Can I just ground it somewhere? I figure not. I'm at a loss how to proceed. I

Thanks for any input.


Hisser
 
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jrichker

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Diagram courtesy of Tmoss & Stang&2birds
86 5.0 Mustang ECC wiring diagram with ignition


Mustang-86-Mustang-ECC-EFI.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.


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

1986 Mustang 5.0 1986 EEC/ ECM. EFI wiring schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-86-Mustang-ECC-EFI.gif

1986 Mustang 5.0 1986 Lighting Diagram schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-86-Lighting-Diagram.gif

1986 Mustang 5.0 1986 Body Diagram schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-86-Body-Diagram.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

Complete computer, actuator & sensor wiring diagram for 91-93 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/91-93_5.0_EEC_Wiring_Diagram.gif

Complete computer, actuator & sensor wiring diagram for94-95 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/94-95_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
 

Hisser

New Member
May 9, 2009
3
0
0
Hey jrichker,

Man, what a resource!! Thanks for the tip. This should fix me up quick. By the way, I'm in Rome, GA. Appreciate your hospitality and assitance my GA friend.

Hope to get this machine rolling sometime soon.

Hisser