2014 7AT TCM and Valve body issues

Originally Posted by STP370z

I appreciate the help, the original issue was a code for the output shaft speed sensor. I am currently deployed so my brother is looking after it for me and he used his snap on scanner tool to diagnose the issue and using the nissan service manuals and what not he got from his work he determined the TCM and valve body had to be replaced to resolve the issue, this is the same answer I got from a close friend that is also a nissan mechanic. The 1k price to fix is just for the part alone, me and my brother are more than capable of dropping and replacing the trans and have all the neccessary tools at our disposal. The hig issue is the TCM needing a reflash because if we get the part from nissan they will reflash once it's in the vehicle at probably a high cost, if I can do a plug and play then that would be easier and I have found some 7AT trans online with less miles for cheaper than the part cost. I will getting home in a month or so and will talk to the Nissan dealer about the reflash and getting the current TCM firmware for my vehicle to try to match it up as good as possible. Sorta off topic too but do you know of any sellers of sequential trans for our cars? I know quaife had one but it's not on their site anymore, or do you have any links to a thread about them/a build that uses one? End goal is a track orientated build so any insight in that would be great too. Thanks again

Originally Posted by "Z"en

In short, if your code is p0720 then it's highly likely a failed tcm solely. Getting a tcm isn't expensive (less than $300) and you will be most likely free of the mismatch if you choose those of #M3B 94-110N without oil pressure sensor on them imo. I agree with you that getting a preused 7AT as replacement will be much easier, to say the least. I'd also like to vote for Spooler's opinion/suggestion (If you want a manual car, the best option is to just get a different car).

Originally Posted by STP370z

The code is P0720, the nissan dealership quoted $1000 for that part and the valve body as I believe it comes together (cant get one without the other). If I can get just a TCM and throw it in for $300 from a 14/15 7AT the I'll do that. I'll have my brother look into it while gone. As for the sequential that's like an end of build dream when the car is fully built, but if forced I would do it now, but not for that price. I have a 2011 TT Nismo lined up for purchase when I'm back which Is why I'm not too concerned with how I resolve this issue. Thanks for the feedback

Originally Posted by "Z"en

I purchased a preused tcm in good condition through eBay.
I gave the seller the part number, model year, and software code of my tcm btw, followed by asking them to try matching one up for my car.

Originally Posted by STP370z

Do you have a link to that specific seller?

Originally Posted by "Z"en

Originally Posted by STP370z

Appreciate it, I sent the seller a question with the part number you listed before ( #M3B 94-110N) since it is the none oil pressure sensor version. Thank you for the help