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I need a 90 wiring diagram

  • Thread starter Thread starter Rusty67
  • Start date Start date Apr 28, 2008

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
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109
LA, CA
Apr 28, 2008
#1
  • Apr 28, 2008
  • #1
I am helping a friend do an EFI swap in his 68. We are at the point of testing the motor but in order to do that we need to get the computer all wired up to the motor. We want to keep this setup as clean as possible and we are trying to elminate all the extra wires we wont need like the AC, EGR, alternator and so on. We want the harness to be as small as possible on only have wiring that runs the motor.

I've been doing searches on the site and I can't seem to find a 90 specific diagram. I've check into fordfuelinjection.com and I've got the generic diagram for the 88-91 diagram and these are great but the colors don't all match and there are extra connectors in some places and we seem to be missing connectors in other places.

The car is a 90 LX with an auto trans ECU. I'm not sure if the autos had a different harnesses but I thought that Ford used the same basic harness for everything. Thats why I don't understand why we have extra connectors in certain parts of the harness and we are missing connectors on other parts of the harness.
 

LiquidGT

Member
Oct 8, 2007
368
0
16
Near STL hell
Apr 28, 2008
#2
  • Apr 28, 2008
  • #2
Have you been here?

http://www.veryuseful.com/mustang/tech/engine/
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Apr 29, 2008
#3
  • Apr 29, 2008
  • #3
Yes, they don't have what I need. The diagrams don't match out setup.
 

tmoss

Gettin Wired
Founding Member
Jun 28, 2001
7,153
32
128
Saint Louis, MO
Apr 30, 2008
#4
  • Apr 30, 2008
  • #4
time to buy a wiring diagram for a 90 from Ford then.........
 

joel5.0

Member
Jun 15, 2004
429
2
18
Puerto Rico
Apr 30, 2008
#5
  • Apr 30, 2008
  • #5
You could also check this 1990 Mustang diagrams set. LUK
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Apr 30, 2008
#6
  • Apr 30, 2008
  • #6
Thanks for the link to those diagrams. I don't think I've seen those before. Hopefully that will match up with the harness we have.
 
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