hi there
i have 2019 hellcat which runs very rich. Stock engine got damaged and was replaced with stock engine from 2018 model, stock ECM was flashed with 2018 model firmware by repair shop.
not sure why in datalog i got rpm low as 244, low spark and stft sky high.oemstock.hptcold start.hpl
where would you start lol?

p.s. i drove like 30miles with it and no codes pop up