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

Electrical Does Anybody Have The Fuel Pump Wiring Schematics For A 91?

  • Thread starter Thread starter Boostedpimp
  • Start date Start date May 28, 2013
Prev
  • 1
  • 2
First Prev 2 of 2

clement

Founding Member
Feb 27, 2001
1,106
52
59
50
Oak Cliff
Jun 22, 2013
#21
  • Jun 22, 2013
  • #21
if you still want them, I can get the schematics from alldata. if you want them I can email them to you.
 

Boostedpimp

20+ Year Stangneter
May 8, 2003
1,451
493
154
NJ
Jun 22, 2013
#22
  • Jun 22, 2013
  • #22
clement said:
if you still want them, I can get the schematics from alldata. if you want them I can email them to you.
Click to expand...


Yes please hook me up.. hell if it helps me in the faintest i'll paypal you a few bucks


email is sy1485@gmail.com
 

Boostedpimp

20+ Year Stangneter
May 8, 2003
1,451
493
154
NJ
Jun 22, 2013
#23
  • Jun 22, 2013
  • #23
Saleen0679 said:
There is a yellow wire that goes to the EEC relay and pin 1 on the PCM, but it should be connected to 12v through a blue 20g fusible link.
Click to expand...

you know what I don't see that fuse link wire... and I believe that's the wire I was told fried so it would make sense that this yellow wire would be the one in question. Did this fusible link get it's constant 12v from being bolted directly to the starter solenoid or somewhere else?
 

clement

Founding Member
Feb 27, 2001
1,106
52
59
50
Oak Cliff
Jun 22, 2013
#24
  • Jun 22, 2013
  • #24
Boostedpimp said:
Yes please hook me up.. hell if it helps me in the faintest i'll paypal you a few bucks


email is sy1485@gmail.com
Click to expand...

no need for $ my friend. ive had pleanty of guys help me out through the years. you should have an email.
 

Saleen0679

10 Year Member
Apr 14, 2005
876
24
49
Yakima, WA
Jun 22, 2013
#25
  • Jun 22, 2013
  • #25
Boostedpimp said:
you know what I don't see that fuse link wire... and I believe that's the wire I was told fried so it would make sense that this yellow wire would be the one in question. Did this fusible link get it's constant 12v from being bolted directly to the starter solenoid or somewhere else?
Click to expand...

Schematic is for a 92. See if it matches what you have. Ford like to change wiring colors.
See fuselink G.


 

Boostedpimp

20+ Year Stangneter
May 8, 2003
1,451
493
154
NJ
Jun 22, 2013
#26
  • Jun 22, 2013
  • #26
Well 99% sure that yellow wire was the VPWR wire to the ECC relay so I attached it to the starter solenoid with a new fuse link and everything works again except the fuel pump will not prime. Tried another fuel pump relay but no dice.. it seems the ecc relay is the same relay so I tried the new one in there and no dice neither. Im getting volts to the inherta switch and fuel pump
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
80
Dublin GA
lowendmac.com
Jun 23, 2013
#27
  • Jun 23, 2013
  • #27
Boostedpimp said:
Well 99% sure that yellow wire was the VPWR wire to the ECC relay so I attached it to the starter solenoid with a new fuse link and everything works again except the fuel pump will not prime. Tried another fuel pump relay but no dice.. it seems the ecc relay is the same relay so I tried the new one in there and no dice neither. Im getting volts to the inherta switch and fuel pump
Click to expand...
See the Fuel pump Troubleshooter tech note I posted earlier. It has everything you need to know to troubleshoot and fix your problem.
 
Prev
  • 1
  • 2
First Prev 2 of 2
You must log in or register to reply here.

Similar threads

F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
329
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
1999 Mustang GT - No Start- Need help understanding the fuel pump circuit and how it works
  • 99gtGuy
  • Nov 4, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
536
1996 - 2004 SN95 Mustang -General/Talk- Nov 7, 2025
04newedge-
0
A
Resolved Fuel Pump issue - test port jumped comes on (87 LX)
  • afjLX
  • Nov 16, 2024
  • Fox 5.0 Mustang Tech
  • 2
Replies
33
Views
2K
Fox 5.0 Mustang Tech Nov 26, 2024
afjLX
A
Resolved 1989 Mustang GT no spark, no trigger pump relay
  • Nine Finger Wrenching
  • Nov 26, 2023
  • Fox 5.0 Mustang Tech
Replies
14
Views
4K
Fox 5.0 Mustang Tech Nov 30, 2023
Nine Finger Wrenching
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
929
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
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?