@DavidGK Check the two main ground points by the engine. Sorry, but I don't have a manual for your year. My 2021 P1k5 gave me all kinds of problems that everyone (incl. the Honda dealer) said was bad gas. It wasn't. It was faulty ground points that felt tight.
The cheapest thing I can tell you to try is to find both engine-side grounds and disconnect, wire brush, and reattach.
PS: For bad gas, I've had the best luck with Seafoam.