Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
After shut down, I wait 10 seconds, then it starts and runs fine. First time this happened.
How can I figure out what is wrong?
Sounds like it's time to visit a mechanic or dealer with an OBD-II reader (or get one yourself - can even get a bluetooth model and see the results on your smartphone) and see what the onboard computer is trying to tell you.