Funny you should revive this thread. I actually managed to fix the problem. What it ended up being were the injectors. I had a donor supra, so I swapped out the injectors and voila, problem was solved. My theory was that they were injectors for a turbo model in my NA model. I don't know if this will help you, but I would definitely check to see if the electrical resistance on your injectors are consistent for your model.
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