OK, there are a few things needed to start tuning your KA24DE/SR20DE(T)/etc.
1. Consult Cable and Datalogging
The consult cable will allow you to data log and monitor every sensor in your car. You can DIY for cheap, or order a premade one from:
There are a few software programs out there. Here are the best:
Nissan DataScan http://184.108.40.206/
This is what I usually use. Supports all of the advanced Consult features, mapping tracing, wideband 02, etc. Great software, and pretty cheap at ~30 bucks for a license.
OBD Scan Tech http://www.geocities.com/obdscantech2000/
Similiar to NDS, but free, and accepts donation. Also looks like it has some advanced OBDII functions.
Not a bad little free program, doesn't seem to be update anymore though. If anyone wants it, I will post it.
*** Please note: The KA24E ECU does NOT have consult support, and, if you wish to tune it, please convert to a U12 Stanza KA24E Ecu. It is the same thing, but has consult ****
2. Daughter Boards
Again, you can make your own for cheap, or buy a prebuilt one. I prefer PLMS's
It is high quality, and Pete is the man over there. Add 2 chips to it, and you are almost all set!
*** Note, the CA/KA24E/RB do not need a daughterboard, they are 8Bit ecu, and just require the old chip to be removed and a socket installed ***
3. Chip Burner
I use a Willems Enhanced burner. Very cheap and works! I bought mine from here:
For 45 bucks, its not too bad. You can most likely find one/a knock off for cheaper on Ebay
4. Wideband O2
Just about any wideband O2 will work, just make sure it supports data logging. You can NOT tune off of a narrow band. Put the disco lights away please
5. Tuning Software
Luckily, almost all the tuning software out there is FREE. First, get a HEX editor (WinHex is good). Next, you will need some basic tunning program like:
I love this program. It is very advanced and intimidating at first though. The standard, no real time version is free. I will upload some Address files for it later.
This is a cool, poorly translated Japanese program. It rather simple and stream lined, but it goes do its job. If there is interest, I will attach it as it is no longer available.
Another very basic and streamlined program, it is kind of cool as it has a built in Fuel Injector changer (ie from 270s -> 550s), and it has a built in MAF/VQ scale changer. It is discontinued by Lawrence Maroney, and, again, if there is interested I will post it up here as an attachment.
And, after you accumulated all of this, you should be good to go and get started! More posts to come!