Solved! Bad MAF. Following up on this for future internet searchers.
- Problem randomly occured. Typically on freeway. In a sudden jolt, I would get zero throttle response. I could mash the throttle or dump the clutch, and typically nothing changes. Sometimes I could suddenly get 100% power back. NEVER any CEL... making it stupid hard to figure out. I replaced my MAF connector, cleaned my grounds. Still issues. Then one day, I finally saw a code appear when the engine dropped power. YAY, a clue! It pointed to the MAF. I bought a used MAF on Craigslist for $40, swapped it in, and zero problems since! ~3k mi.
(Then a fuel injector died. Yay!)
Cheers
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