bac
Well-known member
Hi all,
my '71 M code Mach 1 has a Flamethrower coil that needs an external resistor, so it's hooked up to the standard ignition wire (or so I think) which supplies around 6V - all good there. However I've noticed that this wire is 'hot' with the key in the accessory position as well, which I believe shouldn't be the case. The same goes for the full 12V supply wire coming out of the same section of the loom which is used for the electric choke, meaning the choke element is 'hot' in the accessory position as well.
So am I correct in thinking things are wrong here? With the earlier year Mustangs I've owned the coil wires have only been energised in the start and run key positions, so does this mean someone has wired up the ignition switch incorrectly at some stage?
I have copies of all the wiring diagrams so if anyone can point me in the direction of both resistor and full 12V supply wires in the engine bay that are only active with the key in start or run position that would be a big help!
my '71 M code Mach 1 has a Flamethrower coil that needs an external resistor, so it's hooked up to the standard ignition wire (or so I think) which supplies around 6V - all good there. However I've noticed that this wire is 'hot' with the key in the accessory position as well, which I believe shouldn't be the case. The same goes for the full 12V supply wire coming out of the same section of the loom which is used for the electric choke, meaning the choke element is 'hot' in the accessory position as well.
So am I correct in thinking things are wrong here? With the earlier year Mustangs I've owned the coil wires have only been energised in the start and run key positions, so does this mean someone has wired up the ignition switch incorrectly at some stage?
I have copies of all the wiring diagrams so if anyone can point me in the direction of both resistor and full 12V supply wires in the engine bay that are only active with the key in start or run position that would be a big help!