It is my opinion anyone who modify their turbo dodge should learn to do the calibration tuning themselves. The upgraded hardware is no good if the ECU is calibrated/tuned for the wrong hardware.
The tuning software and calibration software are free.
http://www.turbo-mopar.com/forums/sh...?45009-MPTuner
http://www.turbo-mopar.com/forums/sh...or-LM-codebase
As for tuning hardware, you'll need a socketed LM/SMEC, a Moates Ostrich, and a laptop then you're ready to tune in real time. Plenty of guides made in the last 10 years if you search.
Stock fuel pressure is 3.8 bar/55 psi. I use a 3 bar / 43.5psi fuel regulator and you use a 1.7 bar / 25 psi. 1.7 bar is simply too low of fuel pressure for your car.
https://www.enginelabs.com/engine-te...tem-questions/
You need to get the fuel pressure
back up to at least 40psi, then adjust your custom tune.
In my opinion, using off the shelf ECU or adjusting fuel pressure to tune is out dated and inadequate in today's world. They both should be superseded with custom calibration that is
custom to your engine hardware.
http://www.turbo-mopar.com/forums/sh...+fuel+pressure
If I was in your shoes, I'd get that based fuel pressure above 40psi, then use MPtune to adjust the custom calibration until I am happy how it runs.