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

Electrical Looking for Constant 12 v

  • Thread starter Thread starter cbac89
  • Start date Start date Oct 26, 2024

cbac89

Member
Sep 11, 2024
20
3
13
Raleigh, NC
Oct 26, 2024
#1
  • Oct 26, 2024
  • #1
I am still working out electrical bugs on my 89 that was switched to a carb and had th computer removed. So to get the car running, i had the fuel pump and coil on relays that i triggered with a physical switch. Eventually I managed to get the keyed ignition switch to get 12 v to the solenoid terminal by jumping out the safety switches which allowed the use of the key to start the car (albeit still needing to flip on the physical switch for the pump and coil). Now i want to eliminate the physical switches for the coil and pump but i cant seem to find a wire that provide 12v on Run and during Start. I thought from studying diagrams (found on this forum, thanks!) that the red/light green wire from the ignition switch might provide constant 12v but thats not the case. Anyone know where i can get constant 12v during Run and Start? Thanks.

 
Last edited: Oct 26, 2024
You must log in or register to reply here.

Similar threads

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
142
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
8
Electrical Crank-no start ... no spark ... no injector pulse, was it something I did? (redux)
  • 85gtCOBRA
  • Oct 28, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
497
Fox 5.0 Mustang Tech Oct 29, 2025
85gtCOBRA
8
Engine Fuel not pumping
  • Creomod
  • Apr 13, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
43
Views
704
Fox 5.0 Mustang Tech May 3, 2026
Shakerhood
N
Electrical Switched 12V source for HEI
  • notch351w
  • Oct 16, 2024
  • Fox 5.0 Mustang Tech
Replies
14
Views
854
Fox 5.0 Mustang Tech Oct 27, 2024
limp
8
Did I fry something messing with my ignition?
  • 85gtCOBRA
  • Oct 18, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
30
Views
970
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 15, 2025
85gtCOBRA
8
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?