Starting Issue

Could be fuel pressure regulator. Allowing fuel leakage into cylinders after ignition shutoff. I had these same conditions on a 99 yukon. Changed the regulator (and the spider injectors since I was already there) and problem was gone.

I'm having the exact same problem with my 2013 Veloster turbo. I go out to start it and sometimes it starts right up and other times it hesitates and winds. Dealership looks at me like I'm crazy because it's not on their computers ;/

After dealing with this for almost a year my car finally threw a code and it was the crankshaft position sensor, replaced that and I haven't had an issue since

Did anyone in this thread ever figure out the problem

Yes, I am the orginal post. It turned out to be my Crankshaft Position Sensor. After over a year of this problem it finally got bad enough to give me a code. Like a 10 minute fix

Thank you I have the same car with the same issue. Much appreciated

GuruB452V Did you have to do a relearn on your ecu after changing out the crankshaft position sensor?

No, I just unplugged it and plugged the new one back in, it just had one screw. The only problem I encountered was the Duralast brand from AutoZone was just a little too short so I couldn't put the connection in its designated mount but that didn't cause any problems so it was fine.

GuruB452V Yeah I purchased the same one from auto zone but unfortunately my car is still having the same issue. I just knew it was gonna fix it bc my problem was identical to yours. ‍♂️

So Derek what was your solution? Did You find the problem?