2017 Porsche 911 — check-engine light turned itself off — still scan it?

Intermittent stuff lies if you only catch it once. If a shop can't duplicate it on the 2017 Porsche 911, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. On “check-engine light turned itself off — still,” that was the fork that mattered for me. This is from a 2017 Porsche 911 in Los Angeles with 139,500 miles. Stop there until you know. That's my plan before I call anyone.