So did anyone download that OBD1 aba bin I posted before they shut down the link? I need that file and we will get a working TP XDF going today.
awsome lets get our party on. I will post up a file to let you guys tune later.
Open up your winols demo and load the chip file you have downloaded.This is what you should see.And move to the same location as I am at ~ B124
You need to have your winols set to 8bit and 255 right here otherwise none of this will make sense.
These are main fuel tables. There is a high throttle and a low throttle map that in this case is 16/16. There are other sizes of tables and after you have learned to use this you can actually learn how to make them whatever size you desire (I personally think the sizes are fine unless you vary your power band waaaaay up the range from stock).The location of the two maps we are working on is B124 and B248
The main part we want to look at now is the obvious area between the maps. This is the area where the scale of the maps are laid out (RPM and MAF in this case).If you take your curser and just write down all the numbers you see from left to right like this. Here are my chicken scratchings. Notice the curser is at B247 which is the last value we need for the layout. You are writing down the data numbers on the bottom next to the curser location.
Last edited by TIGninja; 02-20-2011 at 04:21 PM.
Ok the first number we have is 57.57 will always be used in this ecu as a RPM point. So 57-16-5-5-5-10-5-5-5-10-5-15-10-15-15-101
Lets look at the last number (101) this is out last RPM point for this perticular map.The formula to make this number into something that makes sense is this 256-101* 40= 6200rpm. This is out last RPM point.The number before the 101 is the next RPM point (15). to figure out the RPM we take the 15 and mulitply by 40 for 400rpm. We subtract 400 from 6200 and we get 5600 for the secont to last rpm point. You have to continue to do this until you get all RPM point for the map.
And there is half of it.
Last edited by TIGninja; 02-20-2011 at 06:05 PM.
Ok im a dumba$$. Its been a while instead of 255 use 256 for your RPM calc.
I wondered about that, lol. I've been using 256...you had me worried I'd ufcked up .
Ok you guys I cant remember the scaling for the MAF and I cant find it. Its in grams per second and its probably 256-86=170 for the last number and then -10,-10,10 for the rest. Im waaaay to lazy and dont have a vag com to check it for me.
Yep, the max value is 170, and the smallest is 20.
20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 132, 150, 160, 170.
ready for the next lesson coach .
Ok I have low and high throttle timing and fuel maps,full throttle fuel map,and what looks to be a idle fuel map.
There are some pretty good XDFs here for OBD1 VR6. I have not tested them yet to confirm they are correct but they look good. Tonight I will make a couple of changes to these and we will go through what is what.
Looks like when I get back from vacation I am going to be tuning a OBD1 VR6. I will try to document the tune as much as I can while its done.
I've got an xdf with all the maps, but they are not labeled. It was easy to do, all I had to do was figure out how to read hex, figure out where the main map list was in the bin, translate all that into a beta xdf, buy an emulator to do map tracing to start finding out which piece of code does what, and then start hunting down information on the factors and offsets for the axis values. I'm not quite ready to share it, since I'm not willing to take the heat if something goes wrong, or spend all day answering questions about stuff I'm still learning . TIGninja is kind enough to fill in the gaps, so patience is key .
I will say though, it's out there if you look for it . It's way better to know WHY you're doing what you're doing, than it is to have it spoon fed. That's what TIGNinja is trying to do.
Last edited by B4S; 03-07-2011 at 10:20 AM.
Just got a 94 Jetta 2.0 for a daily driver. Can't wait to test this stuff out .
Project canceled due to a few morons on this forum.
I come here and offered this to everyone for free and get nothing but disrespect from this forum.Why should I continue to offer this to these people is what I keep asking myself.
There is enough info in this thread to tune OBD1 already so use it and be happy. There wont be any development of the fun things like launch control and other things because I am so annoyed by this forum I just dont care.
ignore the morons carry on with it here http://the-corrado.net/showthread.ph...to-remap-a-VR6 this is the old school way but much easier now with real time data trace
Last edited by magner; 03-14-2011 at 10:09 PM. Reason: new link