<VV> "funny" wiring question

[GYoungwolf@aol.com]

I have a '65 140 that will fire off nicely and immediately stop. I suspected 
the coil and started checking the wiring diagram and comparing the actual 
wiring. I found something that looks "funny". The wiring diagram shows a #20 brown 
wire to coil+. What was actually hooked to the coil+ was a blue wire that 
should have been destined for the oil and temperature sensors. I stripped some 
insulation off the loom from the main connector and finally found the errant 
brown wire spliced to one that goes to the license plate light. Could the engine 
have run this way? (Was supposedly running before coming in for an engine 
replacment).
Thanks, and a private reply is okay if this is too techie or boring.....:-),
Grant