OK guys..... look at the original post. If I'm reading it correctly, then he has spark at "run", but no spark at "start" position of the key.

This is the OPPOSITE of the typical ballast resistor burning out. If I'm reading that correctly, then there's either a problem with the brown wire coming out of the bulkhead disconnect (the one that bypasses the ballast resistor) or the ignition switch itself.

One way to test this would be to run a jumper wire from the + of the battery to the disconnected ballast resistor plug that has the brown wire. If the car starts & stays running, then you've found the problem. Don't just leave that wire hooked up though since your ignition voltage is supposed to be "stepped down" with the ballast resistor during normal running & this jumper wire isn't going through the ballast resistor.


70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"