Ford Mustang Forums banner

Question about hooking up a killswitch to your IAC....

864 views 3 replies 2 participants last post by  GUNRUNINPONY 
#1 ·
I picked up the do it yourself kill switch install and the poorly printed instructions aren't super clear so I googled it and found something saying killing your IAC wouldn't disable the car? The instructions say to find your IAC and cut the white with blue stripe wire a few inches from the connector and attach the 2 killswitch wires one to each of the wire you cut? I got a little lost on that statement was hoping someone could help clear this up for me I'm kinda stuck and certainly not new to cars but its got me! Thanks for any help!
 
#2 ·
IAC will not disable the car! If you are looking for a good anti theft location then: signal wire to fuel relay, hot or ground to coil. Those two are the easiest to do and are near fool proof on manual cars unlike dissableing the starter!.
 
#3 ·
Could I do this with the wires and switch I have? I have messed around a lot on that car and did a lot of work on it but never electrical is there a write up somewhere for coils or fuel relay kill? Thanks, that site sucks if they send people directions for your IAC, I knew it sounded fishy and kinda dumb that is why I had to ask the pros!
 
#4 ·
You can do it yourself, though I'm not sure what switch you have. The fuel relay would require the least amp rating of a switch. Get a good wiring diagram for your car and find the signal wire to the relay. This is where you would want to put the switch. Make sure you use GOOD butt splices and crimpers. I use Channel Lock electricians crimpers that can be bought at Home Depot or Lowes. As far as butt splices go, I use non insulated butt splices and then cover them with a quality heat shrink (I only use heat shrink that has a sealant built in so its weather proof after heated and shrunk). The shrink and splices can sometimes be found at Radio Shack.

To do it on the coil you are going to need a higher amp rated switch due to the draw the coil has on the electrical system. I would use no less than a 30 amp switch for longevity sake! Other than that it's pretty much the same as above.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top