Well it came back again but different. Died on me then wouldn’t start. Just like a CPS going bad crank but no start. Took it back to the shop and he drove it around a bunch until it died on him.

He plugged in another K40 and car did nothing. Then he really dug in and found that one of the female connectors inside the plug was broken and barely making contact. Replaced that and it has been problem free for 3 days. Fingers crossed