I have just started playing around with this program and seeing what is all on it before I start to get the parts to try and burn my own chips but I need some help. Since I dont have the parts to read my own chip I wanted to download a file that would have my factory specs on it to look at on TunerPro RT to see what specs I already have. I was told that since I have an 89 formula 350 with MAF it would more than likely be an AUJM ecu. In TunerPro RT i can find an AUJM 6e bin but only a 6Ev011 ecu in the program.

Now when I open up tunerpro rt and open up the AUJM 6e bin, nothing comes up in the Constants, Flags or tables but when I open up the 6Ev011 ecu file in opening up the ECU that is where I get all my constants, flags, and tables. Looking through the constants, mainly the one for when the fans turn on, there is only constants for fan 1 and I have 2 fans in my car.

I am not sure if I am even using this program right or if I am even looking at the right files. If anyone can help me with using this program I would appreciate it. I am very new to all this and am needing some help. I have looked around and some of the information given at the top of this forum and it really isn't helping me much. All I want to really do is look at the specs of the chip in the computer in my car, or at least one close to it, so I can play around with it.

I may have confused anyone trying to read this because I am confused as well. What really makes me think that I am not looking at the right file is the lack of a second fan turn on and off value. SO please if anyone can help me with this I would greatly appreciate it.

 

Your on the right track.
The second fan is not controlled by the ECM but by a temp switch that's why you can't see it.
There many different "ecu" files out there. Some are better than others and some do contain errors in calculations. Not to say they are bad, just look at when they were created and do some comparing to be sure the things you are changing "seem" to be in the same data locations and the calculations are the same.
Most if not all of the ECU definitions have been created by the users and are not a collaborative effort but many individuals. By obtaining them from the TunerPro, DIY, or Moates sites you can get. Also search the boards here and look for references to your mask. People often recommend a certain file name of the ones that are commonly used.
Jp

 

So using those files that I mentioned I am looking at the right files? If I am looking at the right files, could you give me an idea of what are a few minor things to change to see how things work out? I know I would want to change the fan turn on temp so it turns on sooner than what it does, but what else is a good thing to look at to change to improve the performance of the car? Nothing to extremly indepth into the prom just some little things to tinker with on the program. Thanks for your help, at least now I know I am going in the right direction with this.

I have been looking at the files that I mentioned and ones for an 89 vet and I do see a difference in temps for the fan. Is this a good thing to do in comparing 2 different vehicles like this?

 

Sure it is. You can get a decent idea of what GM's insane-budget development program came up with as far as differences between engine/vehicle combos....for example, the differences in spark timing from iron to aluminum heads, or the differences in AE from a lightweight vehicle to a heavier one. This kind of knowledge can be helpful when you go to tune for changes in your own combo.

The first things I'd look at are the simple constants...i.e. injector constants, fan temps, speed and rev limiter values...and the option bits that do things like turn VATS on and off.

It's a lot to learn at first. Don't let it discourage you. Read a lot, and use the search button often.

 

The way I started was like you, change the points where the converter lockup/unlock occurs (if you have auto) Fans temp on/off times etc. Make small changes to see the results.
Take good notes and keep backup files regularly.
then move into the VE tables if you have speed density or the LV8 is the same thing but for MAf cars. The Air/Fuel stuff and the spark tables will make the improvements on running. Making datalogs of your driving will show where the BLM is changing to correct for values that are not optimum for your setup. Make corrections to the tables at those load points to get the engine to perform at its best without too much correction being added/subtracted by the ECM.
Idle issues, accelleration, decelleration all have thier little adjustments but don't try to fix everything at once. You'll lose track and not know what worked and what didn't.
Do lots of reading in the tuning tips and stickies, search for specific problems of how your car acts. Most, if not all of the info is here.
When I mentioned comparing files, I ment the ECU files for the items that are listed in them. You can look into other car configs but your best to work with your setup.
Jp

 

Good point GreatJ,
I forgot about the differences of timing with aluminum heads.

 

6ev011.ecu is the correct file to use. You also need to open the bin. In other words, you need to open both files!

Then you can edit your bin.

6ev011 is about the best 6E ECU file you'll find, in my opinion. It is collaborative between a number of individuals here, most of them old timers.

M

 

I've found some mistakes with it. And I've added a few more things. I'll post it on Moates site when I get back to the US in about 2 days.

 

Excellent. So long as you realize you didn't read the word "perfect" in my post. ;-)

Send your changes to me offline as well so I can integrate them.