I'm trying to help my old man figure out his Mustang. He has a 1970 Mach 1 - 428- 4 speed.
The problem is: Upon turning the key in the ignition the engine fires up, but it dies as soon as you release the key. So, the coil loses power when the key is in the run position.
This car has an aftermarket wire harness installed. I believe it is an American Autowire product (if you know how to tell for sure let me know).
The fuse for "gauges" blows as soon as you turn the key on (not cranking, just turning the key to the first click.)
This car has a Ford HEI ignition setup, so it has some 1970 stuff (like the ignition switch), some late 70s era stuff (like the ignition module and distributor), and the aftermarket harness.
One of the wires tied to the gauges fuse seems to be grounded, but I haven't been able to figure out where. I can't find a wiring diagram for the mystery harness and I'd rather not pull the whole thing out and reinstall it.
Any help is greatly appreciated.
The problem is: Upon turning the key in the ignition the engine fires up, but it dies as soon as you release the key. So, the coil loses power when the key is in the run position.
This car has an aftermarket wire harness installed. I believe it is an American Autowire product (if you know how to tell for sure let me know).
The fuse for "gauges" blows as soon as you turn the key on (not cranking, just turning the key to the first click.)
This car has a Ford HEI ignition setup, so it has some 1970 stuff (like the ignition switch), some late 70s era stuff (like the ignition module and distributor), and the aftermarket harness.
One of the wires tied to the gauges fuse seems to be grounded, but I haven't been able to figure out where. I can't find a wiring diagram for the mystery harness and I'd rather not pull the whole thing out and reinstall it.
Any help is greatly appreciated.