• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Engine wiring help please.

  • Thread starter Thread starter seijirou
  • Start date Start date May 17, 2005
S

seijirou

Founding Member
Aug 15, 2002
2,417
4
48
DFW
May 17, 2005
#1
  • May 17, 2005
  • #1
1989, Driver's side near the hood hinge. The Main harness and Dash harness plug into eachother with a Black connector, and a Grey connector. Both are 8 pin connectors. Does anybody know what signals these plugs contain? Does anybody know if the contents of the connectors differ between 8 and 4 cyl?

Unfortunatly Autozone's wiring diagrams are incomplete and don't provide any connector information.

Also on a 1993 8 cyl. Same location. Single red 8 pin connector.

For those who want to know, I have an 89 4 banger, with a 93 engine and main harness in it. The 89 dash harness has these two connectors, grey and black. While the 93 main harness has a single red connector. I considered putting the 93 dash harness and it's single red connector in, but I'm sure I'll find it doesn't plug unto the rest of the car. So this is where I've decided to make the splice. At the Driver's side hood hinge.

If anybody can help to identify wires in either of these harnesses, I would be very much obliged.
Thanks
 

Juiced88Coupe

Founding Member
Aug 1, 2001
367
0
0
Austin, Texas
May 17, 2005
#2
  • May 17, 2005
  • #2
Sell it and get a correct harness, you need a 89 year only, all others will not work. I have done couple conversions and you will have all kinds of probs. Now you "can" get the 90+ harness to work but you will either have to swap dash harnesses, or do alot of cutting splicing (that is where you run into all the issues.) IMO dont even bother with trying to find out what all thoes wires go to. Do it right the 1st time.
 
F

fedup

New Member
Aug 17, 2004
41
0
0
May 17, 2005
#3
  • May 17, 2005
  • #3
you have a 93 engine harness? and you need an 89 harness? am i correct i hope i am because we can help each other out i have a 93 dash and an 89 harness and you have vise versa i will gladly trade with you and that will end both of our problems the 89 harness i have has been completly gone over and tested so if you are interested let me know




Juiced88Coupe said:
Sell it and get a correct harness, you need a 89 year only, all others will not work. I have done couple conversions and you will have all kinds of probs. Now you "can" get the 90+ harness to work but you will either have to swap dash harnesses, or do alot of cutting splicing (that is where you run into all the issues.) IMO dont even bother with trying to find out what all thoes wires go to. Do it right the 1st time.
Click to expand...
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
4
48
DFW
May 17, 2005
#4
  • May 17, 2005
  • #4
You got it, send me a PM, I have to run out now, but we can defanently work out a plan.
 

Juiced88Coupe

Founding Member
Aug 1, 2001
367
0
0
Austin, Texas
May 17, 2005
#5
  • May 17, 2005
  • #5
Dang, that was easy. Its hard to locate a 89 year MAF harness good luck to both of ya.
 
You must log in or register to reply here.

Similar threads

F
Electrical From scratch: alternator wiring
  • fox racer v2
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
0
Views
527
Fox 5.0 Mustang Tech Jun 23, 2025
fox racer v2
F
Electrical 91 hatch wiring help needed
  • FastDriver
  • Apr 7, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
128
Fox 5.0 Mustang Tech Apr 8, 2026
FastDriver
C
Electrical HELP! 1989 5.0 Stick, Voltage Bleed onto Ignition Trigger wire
  • ChickenDeluxe
  • May 14, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
127
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
B
Electrical Fuse 8, Light Green / Black Wire
  • bleedinggreen
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
375
Fox 5.0 Mustang Tech Jun 26, 2025
bleedinggreen
B
2
Electrical mayhem
  • 2000ElectricGreen
  • Mar 13, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
201
1996 - 2004 SN95 Mustang -General/Talk- Mar 24, 2026
2000ElectricGreen
2
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?