I'm hoping to do some more work on the car this coming weekend. There are a few more things I want to try.
SovverBovver, I have tried opening the bleeder and bleeding with the ignition on and the brake pressed, but no success. I've also tried using a hand pump, an air compressor driven bleeding kit, and the old fashioned up-down method with a helper in the driver's seat. No luck yet.
Even though a spare over voltage relay was installed, I'm planning testing it anyway. I doubt it will be at fault since the one currently in the car is a sealed relay, but I want to verify. As for the ECU, I haven't figured out a way to bench test it yet, but am hoping that since they very rarely go bad, at least one of the two I have will function correctly.