electrical help! key on no power

montyd

Member
Mar 13, 2006
114
3
19
hey guys. i just got done running all the wires under my dash and i hooked up my selenoid and i have no power to it. if i touch the battery wire to the oposite side of the selenoid everything comes to life if the key is on. if i shut the key off it all goes off. put the positive battery cable back where it goes on the selenoid and no power again. the selenoid is new as of an hour ago. is my new one junk? am i missing something obvious? i checked all my plus and everything is plugged in oh and its a 93 lx 5.0
 
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jrichker

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Mar 10, 2000
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64326d1287785504-fusible-link-burned-up-need-help-87-93-5.0-mustang-fuse-links.gif


Fuse links come with a current rating just like fuses. A clue as to what current they are designed for is to look at the size wire they protect.

Starter solenoid wiring 92-93 Mustang or earlier Mustang with upgraded high torque mini starter.
 

montyd

Member
Mar 13, 2006
114
3
19
jrichler your a savior lol i was strting to wonder if i had it wired wrng and sure enough it was backwards thanks so much! that diagram is fantastic is there a website that has more like that?
 

montyd

Member
Mar 13, 2006
114
3
19
ok wired selenoid correctly, now i have dash and dome lights headlights and tail lights and all that stuff. the fuel pump doesnt kick on and when i turn it to start the dash lights get brighter but nothing happens. also the blue box under the dash has a strange beeping sound comeing from it. it sounds like the door dinger is sick but it does it when the doors are shut. and it will beep 5 times and then stop for a few seconds then 5 more and stop the alt gauge says i have 12 volts and is sitting where it normally does. i have the charger on it anyway just to be sure any ideas?
 

montyd

Member
Mar 13, 2006
114
3
19
ok so i was a retard and missed the fuel pump wire when i put everything on the coil. so i now have power to everything. fuel pump kicks on and primes, have poer to my guages and the selenoid. when i turn the ignition to start nothing happens
 

montyd

Member
Mar 13, 2006
114
3
19
i think i have it figured out i dunno what changed. i umped the coil and it crand then jumped the small post and it cranked. now it cranks with the key. have a fuel leak to adress then will try again
 

jrichker

StangNet's favorite TOOL
SN Certified Technician
Mar 10, 2000
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Dublin GA
jrichler your a savior lol i was strting to wonder if i had it wired wrng and sure enough it was backwards thanks so much! that diagram is fantastic is there a website that has more like that?
WWW.stangnet.com... All the diagrams I posted are some of what I have done in the 12+ years I have been here.

another resource for diagrams:
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.

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

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

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

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 & pinout
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