I have a 2014 Hyundai sonata around 97000 miles, no warning lights on at this time problem is it keeps stalling while idling if im in stop and go traffic. I have taken it to get looked at paid 200$ for a complete diagnostic only to be told there's no problem it starts with slightly rough Idling and then slow hesitant acceleration and then dies. I park it turn it off completely 20 minutes later it will start up completely fine. I have replaced the spark plugs, the purge valve, the battery is also new as of this year idk what the problem is. Someone please point me in a direction preferably not a bank breaking one 🙃