Nissan ECU Tuning

bmx269 · Joined: 21 Apr 2008 Posts: 3

Ok, First off, I am new to Nissan rom tuning, I have Megasquirt experience, so I am not a total newb. Here is my situation, I swapped a S14 SR20DET into my AE86 Corolla (drift car), all has gone well, until I went to drive the car. The ECU idles at 8.9AFR, and runs like crap. The ECU is a WC with daughter board, and it came from Japan like this. We have downloaded the rom, (attached) and looking at the values compared to a stock s13 sr20det map, they are completely different. I am looking for a stock S14 SR20DET map to use with the 370cc stock injectors, and the MAF 22680-69F01 which is the late model S14 one. I have looked throughout the forums, and have not found the info I need to even change the rom tune I have to have a correct MAF K Value as I do not know what it was setup for originally. It seams that I need that info to calculate another value. Any help on this would be great guys. Thanks.

I also would like to know if the map that is attached has any value to help me learn this new system.

My ECU has 2 chips, so the files are in 2 parts. This one is the first file. Second to follow.

http://www.fast-files.com/getfile.aspx?file=12534

-Trent

bmx269 · Joined: 21 Apr 2008 Posts: 3

Here is the second file...

http://www.fast-files.com/getfile.aspx?file=12536

-Trent

speedlab · Posted: Mon Apr 21, 2008 9:49 pm Post subject:

hit me up on PM. I have a few at home, and can send to you later today.
_________________
(OO SKYLINE OO)

speedlabperformance@gmail.com

Looking for ROM trades. Feel free to PM or email.

wallerio · Joined: 12 Oct 2006 Posts: 41

b6a3 (46755) is your k.
not for this maf even that your vq map is still stock.
came your engine with this ecu?
do you have a pic of your injectors?

bmx269 · Joined: 21 Apr 2008 Posts: 3

The engine did NOT come together with the ECU. The company had a pile of WC ecu's and they just grabbed one. I have stock (purple) injectors, the engine is stock S14, with the late model maf.

-Trent