Nistune Forums

So I'm using I wanted to bring this issue up to you guys, when I went to bring my car to get tuned, the tuner could not load his premade maps into my ecu for some reason, he had to make a whole new tune from scratch. I guess the whole reason was the 1994 ecu I was using. He told me he never had problems with any ecu "93" below. Before all this even happened the shop that chipped my board told me he needed a special chip because I guess the ecu from the 94 was a weird one because of the the whole OBD 2 crossover that happened in 95. That's the thing though......this ecu is still obd1......why am I having problems uploading 91-93 maps....... So I was wondering why this happens? If this was a bug that that might even fixable in the future. .....or am I simply uploading the file wrong?

This is what happens when you try to load a 91-93 bin file in to a 94 ecu....

It's kind of aggervating in a way bwcause there is dozens of files online that I would like to try......I can't use not one of them........its like I'm shut out from the rest of the community.

Top have you tried coping over the fuel map and igntion map onto a 94 bin? then change all the values like TP and ect?

BlueRB240 wrote:Top have you tried coping over the fuel map and igntion map onto a 94 bin? then change all the values like TP and ect?

No I have not looked into it as of yet......Still new with this program but I'm trying to make a effort to learn how to operate this ecu on my own because the tuner is almost 150 miles one way and I'm short on cash for a tune. As of right now I'm just wondering why I can't just simply upload and run a program like everyone else. I thought this was a simple question but maybe it's more difficult than it sounds perhaps.....Not being a ass or anything but I have a import event this weekend so I'm trying to get the car ready soon as possible....

Do you have a wideband? If so give your email and I'll copy over one of the bins I have for stock VE injectors and DE maf to a 94 bin. If you have a wideband you can muck around with it to get the WOT A/F @ 13.1, just remember to hit the burn to rom button after you make changes to the program.

BlueRB240 wrote:Do you have a wideband? If so give your email and I'll copy over one of the bins I have for stock VE injectors and DE maf to a 94 bin. If you have a wideband you can muck around with it to get the WOT A/F @ 13.1, just remember to hit the burn to rom button after you make changes to the program.

Ok just inboxed you we'll see how this goes broham!!!

Updates to Nistune now check the ROM image loaded matches the address file, hence the message. You can hit no and ignore it but it isnt advised

You can load a second copy of Nistune with the 1991-1993 B13 Sentra address file and the tune file. Then view maps and tables in 'raw view'. Select and copy each map from the 1991-1993 tuned copy to your 1994 ECU manually

We do this for RB25 tunes into the R32/Z32 ECUs for example