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

EEC Relay Location

  • Thread starter Thread starter jeepersmitty
  • Start date Start date Jan 2, 2004
J

jeepersmitty

New Member
Dec 21, 2003
4
0
0
Jan 2, 2004
#1
  • Jan 2, 2004
  • #1
Having fuel pump problems 1990 2.3L Found the Fuel pump relay under the drivers seat. The computer on the right (passenger) side kick panel. Where is the EEC relay???
 
M

MustangPatty

Founding Member
Jun 5, 2002
292
0
0
Sallisaw OK
Jan 2, 2004
#2
  • Jan 2, 2004
  • #2
Check under the hood, aginst the Firewall, on the right side of the Cowl, I'm not to sure if its actually there, but I think I read it somewhere....
 

CruzNlife1

Founding Member
Feb 17, 2002
1,419
0
0
West Palm Beach
Jan 3, 2004
#3
  • Jan 3, 2004
  • #3
It's in the box on the passenger strut tower, but why may I ask do you need to get to that relay ?? If your car runs, than it is working fine.... And would have nothing to do with fuel pump problems...
 
J

jeepersmitty

New Member
Dec 21, 2003
4
0
0
Jan 3, 2004
#4
  • Jan 3, 2004
  • #4
That's just it. The car doesn't run, unless you physically actuate the relay. Take the cover off, and make it "click". So the control signal is not getting to the relay. That's why I'm looking for the ECC relay

From an earlier post

New to working on a Mustang, so even the most basic help is welcomed. 1990 2.3l Fuel pump problems. If I bypass the relay under the drivers seat, the pump will work and the car will start. When I check the imputs to the relay, no signal. Where does the signal come from? Is there a pressure switch on the EFI that turns on the fuel pump relay. Does it go to some computer. If so where is the computer and what are the pins? Thanks for any help.
Jeepersmitty
 

CruzNlife1

Founding Member
Feb 17, 2002
1,419
0
0
West Palm Beach
Jan 4, 2004
#5
  • Jan 4, 2004
  • #5
Well I know for sure, the wire that activates that relay is in the loom of wires going into that black box on the strut tower, go to the junkyard and pull another one from a wrecked car, and see what happens....
 
You must log in or register to reply here.

Similar threads

U
No fuel pump relay in harness
  • Uli661
  • May 18, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
104
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 1, 2026
Uli661
U
S
Help needed - Cranks, no Start
  • sleeping93coupe
  • Nov 30, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
270
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 30, 2025
AeroCoupe
New fuel pump relay
  • Scrapla347
  • Nov 3, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
766
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 8, 2025
Scrapla347
S
1990 foxbody 5.0 fuel system.
  • staceyj
  • Nov 28, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
337
Fox 5.0 Mustang Tech Nov 28, 2025
Mustang5L5
Electrical EEC Rebuild recommendations
  • Shakerhood
  • Jul 4, 2025
  • Fox 5.0 Mustang Tech
Replies
4
Views
278
Fox 5.0 Mustang Tech Aug 7, 2025
Mustang5L5
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2.3L (N/A & Turbo) 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?