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

No Spark, No Injector Pulse.

  • Thread starter Thread starter Bosshogg083
  • Start date Start date Jun 4, 2014
B

Bosshogg083

New Member
Jun 4, 2014
1
0
1
Jun 4, 2014
#1
  • Jun 4, 2014
  • #1
One of my msd wires grounded out on my header and shut down my car. When I turn my key on I don't get fuel injector pulse or spark when I cranked the car. I checked voltage at the red/green wire at coil and there is nothing. I bypassed MSD still nothing. I ran a wire from the ignition (12v) to the red/green wire so that when I turn the key it sends voltage to the red/green wire and the injectors pulsed and the car cranks and runs. I'm trying to find out where the the power come from for the red/very wire. I have been though the checklists from the Web but no result. I'm hoping I'm over look in no something. By me rigging it up it allows me to drive the car but it's not fixed. Any help would be great.
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 5, 2014
#2
  • Jun 5, 2014
  • #2
There is a 20 gauge blue fuse link in the ignition coil power feed that comes off the ignition switch. You probably blew that one.



Diagram courtesy of Tmoss & Stang&2birds

Ignition switch wiring


Fuel, alternator, A/C and ignition wiring



See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.

Complete computer, actuator & sensor wiring diagram for 91-93 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/91-93_5.0_EEC_Wiring_Diagram.gif

Complete computer, actuator & sensor wiring diagram for 88-91 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif


Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif

TFI module differences & pin out
http://www.veryuseful.com/mustang/tech/engine/images/TFI_5.0_comparison.gif

Fuse box layout
http://www.veryuseful.com/mustang/tech/engine/images/MustangFuseBox.gif

87-92 power window wiring
http://www.veryuseful.com/mustang/tech/engine/images/mustang87-92 PowerWindowWiring.gif

93 power window wiring
http://www.veryuseful.com/mustang/tech/engine/images/mustang93PowerWindows.gif
 
You must log in or register to reply here.

Similar threads

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
530
Fox 5.0 Mustang Tech Oct 29, 2025
85gtCOBRA
8
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
187
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
Electrical 88 EEC Injectors batch firing ?
  • Dustin 86GT
  • Dec 8, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
405
Fox 5.0 Mustang Tech Jan 8, 2026
gkomo
M
Misfire
  • Mike3
  • May 30, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
1
Views
76
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 30, 2026
Mike3
M
J
Engine Tuning...?
  • justadude07
  • May 30, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
176
Fox 5.0 Mustang Tech Jun 6, 2026
Blown88GT
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?