p0606

I have a 2006 Dodge Ram 3500 5.9L I have white smoke and idles rough and once I put it on drive and start driving in runs good but smokes less. i do half blow by as well. mom get codes p1757 Governor Low - pressure malfunction and p0606 internal ECM processor. What do I do?

first time using a forum, i hope people are still active i have a 1989 dodge ram ( not sure what how to know if its 89.5. says in the side of my door it was manufactured may of 89) 2500 with a 24 valve. i purchased it about a week ago knowing it had some transmission issue but the transmission...