2024 Ford Mustang GT — car hesitates once, then drives normally

Start with the test that can prove you wrong. Get a real battery/charging test on the 2024 Ford Mustang, not just resting voltage, before blaming a module. You'll know quickly if you're on the wrong tree. Take it or leave it — that's what I'd do. I keep a notes app thread for this now.

If it were in my driveway, move a coil or plug on the 2024 Ford Mustang if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. Write the result down so the next test isn't a repeat of the last one. I'd sleep better after that step, even if it finds nothing. Next check is the cheap one I can do in a driveway.