Just to follow up (since he might not see this and reply) he posted this on our local forum:
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It turns out that when I had the engine harness done back in 2005, that the people who did it had the ECU, o2 Sensor, and two other wires all powered off of one switchable 12V source. The ECCS relay wasn't actually doing anything! So I moved the ECU power back on the ECCS relay circuit, and everything works great now. Took a lot of continuity testing to find that one, ha ha.
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