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This afternoon I got started on freeing the wiring harness from the body of the car. The diagram below, which was sourced from carfiche.com (which is a really really good resource, BTW), shows the general layout of the wiring harness. The work I've done prior to today left the wiring harness feeding through the firewall on both the driver's and passenger's sides. The loop shown in the diagram above dictates that the harness be removed from the passenger's side and pulled back through the firewall. Here is a close-up of where the harness passes through the firewall into the engine bay on the passenger side. You can see that the wires split off in two directions immediately. On the right side the wires go out toward the engine block and on the other they go over toward the coil. On the block-side branch, there is a black wire and a yellow wire. The black wire connects to a terminal on the distributor cap. The yellow cable connects to another, red, cable. The red wire (which was connected to the yellow wire) grounds on the rear-side of the coolant inlet on the engine block. On the opposite side of this inlet there is another green wire connected. The green wire feeds back over and grounds to the body on one of the mounting bolts for the coil. The coil is also where the other half of the harness wires are connected. I removed the coil, which is mounted to the body with two bolts. The coil has a large cable that feeds electrical current to the distributor cap. It pulled out at either end. I then disconnected four black wires that branch off from the harness. Two of them were connected to the positive and negative terminals of the coil and the other two where connected the spring-loaded lower bracket mounted beneath the coil. Then I was able to pull the whole branch of the harness back through the firewall and into the interior of the car. This freed up the passenger-side of the harness. Between the grommets there were a couple of connections above the steering column. With those removed the harness was free all the way over to the driver's side grommet.