The ground wire is secure.

 

I checked this out. All wires are secure.

 

To the highlighted portion... If that's a normal behavior, there will not be any codes. I notice this too, when I turn the key forward before starting, all my lights come up, and then it's just my CEL and "E-brake" (because I have a manual) lights that are left. And when I have accidentally stalled while taking off from a stop, the CEL is the only thing that comes on, but after I start, it goes away.......

 

I would think that 100 miles would be sufficient. Sorry it didn't work.

 

Update: I went through with compressed air and a clean rag and cleaned a bunch of wires. I also noticed that the protective casing wasn't fully covering one wire, so I made sure it was fully covered. I didn't really expect any of that would fix it, but it appears that it did! It didn't act up at all yesterday! I want to thank everybody for your help and suggestions! I really appreciated all of your input!

 

A wire or 2 probably are frayed/burnt and grounding out, probably near the exhaust.

 

You pretty much got it! It started again, and I went through looking at the wires that I had previously cleaned. The ground connection (right by the main transmission plug) for one wire had come loose.

 

Wow. Why didn't I think of that ?

Oh wait. I did. Back in post #28.

 

firemangeorge "Your's appears to have a short or disruption in the electrical system. Where ? Hard to say. Just one of those things that will have to be traced down.
Me. I would look at it with the car idling and shake, pull, tap, knock, disturb and so forth, any wiring I could get my hands on." (from post 28)

I'm sorry. I did see your post, and I should have acknowledged it as well. You and Donbrew both realized that it was probably a short. You also had a great suggestion (shaking all the wires with the engine running), and I had planned on doing just that, but then it stopped acting up, and when it did return, it was much more rare (2 - 3 times a day, as opposed to at least 50 to 100). But, there were only a few wires that I had cleaned before that got it to stop for a few days, so I looked closer at them, and that is how I found it.

I do want to thank you, donbrew, LawDog88, Snoopy, and everyone else for your help. It was a royal pain having to drive it like that, and I'm so relieved that it's now fixed.