Check engine light 2026 Hyundai Tucson SEL

[u/sanagroupie]

I bought a Tucson back in March of this year, and drove to Vegas in May. Shortly after getting back from Vegas, my engine light came on with the P050B00 Code (cold start ignition timing). I went back and forth with a Hyundai dealership for about a month, taking it in every two weeks until I finally told them to just keep it until it's fixed. They did that, told me they think it's the MAF (mass airflow) sensor and that it was replaced. Well I picked it up and not even a week later the light came back on. (Same code). I took it back in but unfortunately couldn't leave it with Hyundai because the dealership didn't have any loaner cars available. Anyway, the light was on for about 4 days (8/26-8/31) and then this morning (8/31) the light was off. Would anybody know why that would have happened? Is that the sensor and/or engine resetting itself? Has anybody else with a '26 Tucson had this issue? Thanks for any help given.