Uprev "Back to Stock"
 

Does uprev automatically store the stock map? Or do you need to save the stock map as soon as its hooked up before any changes are made?

Basically, looking to swap the stock tune on for a bit and wondering if I need to hunt down a ROM file or if its still in there somewhere.

Did you tune the car yourself? You should have been a Stock ROM map.

It was tuned by a guy I know who is a tuner. Whom I can not get ahold of anymore. I do not know if he made it on a different map or overwrote the stock one or what he did.

Using the ROM editor you can download your Back to stock File for your ECU Part number. Then Flash the Car Back to Stock.
Doing this will Put your UpRev License back on your cable returning your car back to Stock.

http://www.the370z.com/attachment.ph...1&d=1431096423

This is really helpful. But do I need to "download" it from somewhere or is it actually on the cable still?

Basically, could I do this without an internet connection?

you will have to download the Back to Stock Rom file for your ECU part number.

Then Flash that File to the car. Doing this will Put your UpRev License back on your cable returning your car back to Stock

Where do I get the ROM file from? Can I go on Uprevs website to get it?

See Post 4

Gotcha. Trying this in the morning.

I can just save my old tune as a file and drop it back on later, correct?

Ha. Funny thing is if u dont have the tuner cable, u cant download.

Wait. So I cant swap it back? I have the regular cable.

I think you'll simply need someone with a tuner cable to download it for you. they'll need your ecu number. After they download it they email it to you and you flash it back to stock and your license gets put on your cable. If you dont have the tuned rom saved now though youll be stuck and need a new tune i think. Uprev could send it to you too. I have a tuner cable but am just learning how to use it

Try contactng Seymore4 on here he help me out :) .

Just PM me your 5 digit ROM (e.g. 1EA8A )

You have to get your ECU serial number via Nissan Parts dept. by giving them your VIN#.
Once you get the serial number, cross reference your serial # to Uprev ROM Matrix to get the 5 digit that you need.

https://docs.google.com/spreadsheet/...d=0&output=pdf

OP shoot me a PM with your ECU part # and email and I will send you the correct back to stock rom.

Just reflash that and you'll be good to go