Has anyone had any problem reading MyMopar.com wiring diagrams? I'm trying to diagnose an ignition issue and studying the diagram for my 74 challenger. On nearly every diagram I have looked at, only E-bodies have a second wire on the neg side of the coil. The first one, a black and yellow, goes to the ECU which seems common to the other diagrams. But the second wire (than other non-ebody diagrams don't have, traces down to the bulkhead connector but there is nothing connected to it on the other side. What's up with that?? I can't say for sure now (Its dark now) if mine, indeed actually has this gray wire. The only gray wire I'm sure about is the one that goes from sender to oil press gauge.
Anyone else have problems with mymopar.com's wiring diagrams?? shruggy

Thanks
Scott