What's your fuel pressure at? I see you tested or replaced a bunch of items, I'm sure you tested the fuel pressure right? If not, I'd start there.
Have you ever replaced the fuel filter? I didn't see that listed. They should be (and I emphasize SHOULD) replaced every year or 12,000 miles.
You said you cleaned the coil packs but have you checked them with a volt/ohm meter? Thats the only way to tell if they are operating correctly. Same with the plug wires.
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