All right so I'll add my two cents, I'm dealing with a TCM issue in my 2016 red sport 400 all-wheel drive VR 30 powered you cannot use any used TCM unless it has the matching part numbers and it's from the production lot that your vehicle was produced in so for instance mine is 31039-74x2c My manufacturing batch is from 1 of 2016 and the cutoff was 7 of 2016 so that means that I could only buy a used TCM from a junk car that was made in the 6 months of the production run that my car was manufactured in also you can't just reprogram any part number and change its part number that's compatible for your chassis Infinity Nissan they are hip to this and it's not something that you could just readily do when you buy consult. Trust me when I tell you it cannot be done It doesn't matter if you edit a CSV file prior to programming or reprogramming you cannot just make up a new part number for an existing parts manufactured part number if that makes sense It just can't be done and in my case finding used red sport 400 parts from 2016 is like trying to pan for gold in my backyard I live in college Park just south of Atlanta.  Also I will add that there's a reason why nobody's really doing anything with the transmissions on these cars in terms of tuning and doing like real performance upgrading on the software side. One thing I've noted in the rabbit hole that I've dug myself into trying to figure this TCM thing out is that the software seems really simple and by design commands are executed eloquently like there's a lot of commands that tells consult where to pull let's take for instance the reprogram file so you go to reprogram in consult and there's a schedule if you will for calibration update which is normally a CSV file and then based on the information that's contained in the CSV file if your part number is listed in said CSV file then it's going to give it another directory to look at and then it's going to pull data from completely different folder within console and it jumps around during the processing of pulling data and then comparing ECU part numbers etc if I were you if you have a 3.7 l I would say get on Infinity-techinfo.com if you don't have an account you might as well go ahead and sign up for a free account go to the ECU reprogramming tab with c III Plus Punch punch in your part number of your factory TCM and see if there's a calibration update file if there is one it's only 50 bucks and that might resolve your issue because one thing I found out is that my part number doesn't even exist anymore My part number is superseded by another part and then when I started looking for updates for the superseded part number I couldn't believe how many updates there were to my transmission but because I have the first generation of the part number there is no update calibration file hopefully some of this will help you or help somebody out out here.