Another item that can cause hot start issues is the aux air valve. If it's stuck closed, you'll be pig rich and it'll never start. Another item I had on my 4.5 (Also D-Jet like yours) was when I used the idle air speed screw to turn down the idle, instead of the mixture screw on the side of the D-Jet brainbox. If you turn it in too far, it'll be too rich when you try to hot start. See if unscrewing the aux air speed screw about half a turn helps your hot start problem. If so, but it then idles too high, use the trim screw on the ECU to turn down idle instead. This MIGHT fix hot AND cold start issues.

The valve can stick over time, ultimately you can try cleaning it and pinching the bulb a little tighter to see if that addresses the issues, if opening the screw helps it start better.

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k