BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

BRE Forum on PGMFI
http://forum.pgmfi.org/viewforum.php?f=36

OBD0 VTEC Forum on PGMFI
http://forum.pgmfi.org/viewforum.php?f=14

Ben Ogle's ROM Editor Site READ ME
http://www.ef-honda.com/ben/bre/maindoc/index.html



Been playing around with the willem burner I got off here a couple days ago, and I figured I'd like to take the chip out of my ecu that's currently in there for my old boosted setup and just burn a stock pr3 bin onto a new chip with a fuel adjustment for 450's since I'm feeling lazy and don't want to take them back out again. I got the map adjusted for the 450's no problem (duh :1) and it has vtec set to turn on at 4804 rpm's on the stock bin. Burned the bin onto a SST27SF512 chip, popped it into my socketed pr3 and tried it. No solid cel, car seemed to do ok on quick runs so I thought nothing of it. Well, I drove it to work this morning and noticed that vtec wouldn't activate until almost 6k, and it seemed very doggy on the bottom end, much more so than my old 29c chip with some timing taken out and fuel added. So tonight I figured I'd read the chip and open it in BRE to see what's going on with it. Read the chip fine, saved it, went to open it with BRE, and nothing...tells me it's an invalid bin file...wtf is this? ??? I read my old 29c's bin, and it would open it just fine...what am I doing wrong here? Oh, and I'm using the Willem program 0.97g, don't know if it will make a difference. And yes, I set all my jumpers and dip switches correctly and used the 8000 hex offset and the PCB3 setting that I read to do. Even tried 0000 offset and no luck.

Re: Questions about BRE and my Willem burner...
 

Also just tried opening the test bins in TE, Uber, and Crome...no luck, none of them will read it. >:(

*Edit: Just found out something interesting...original bin is 32k, the file being saved from the Willem is 64k. If I can find a way to reduce it back down to 32k it might work.

Re: Questions about BRE and my Willem burner...
 

use 08000 and 0FFFF as your offsets so it only takes 32k of data when it reads the upper half of the SST chip...

Re: Questions about BRE and my Willem burner...
 

Please explain?...I'm using the 0x8000 offset (typed 8000 into the offset box in the program) and it still comes up with 64 bit on the read. Maybe I should just get the 256 chips instead if it'll make a difference. :l
I did run across an article on HT about someone who ran into the same problem. He said he deleted all the "y"'s (which is blank space anyway from what I can gather) before the actual section of code and it came up as 32bit on the save. I tried this, and it works, only problem is it now sits in .txt format instead of .bin format. I'm going to take a guess and say that you can't really read burns on the SST27sf512's unless you can copy and paste in a hex editor.

Re: Questions about BRE and my Willem burner...
 

*Update: Hex editor trick works...came up in BRE normally. Only thing I still can't figure out is why vtec engagement was so high when the bin file says 4804 engagement and 4576 disengagement. I'll try the chip again tomorrow and see what happens...maybe I had the dip switches set wrong. :P

Re: Questions about BRE and my Willem burner...
 

which version of BRE are you using?

Re: Questions about BRE and my Willem burner...
 

Newest version now...2.2.4b2 beta. Lost my old copy when I had to wipe my HD.

Re: Questions about BRE and my Willem burner...
 

you could try going back one release. Ive had a few issues with tuning on the newest release..which details are in the BRE forum on pgmfi.org...

Re: Questions about BRE and my Willem burner...
 

Yeah, had issues with the latest Beta as well...but I dont use BRE enough to keep up with it :-[

Re: Questions about BRE and my Willem burner...
 

working with the ostrich and the autotune functions..works well except it automatically leans out at idle..so bad it'll cut off..if youve read the posts on pgmfi youll see...i sent ben the datalog of it acting up..he thinks its o2 disable related..but that hasnt changed anything..

Re: Questions about BRE and my Willem burner...
 

ive never even got my willem burner to succesfully program a 27 chip, it only likes 29 ???

Re: Questions about BRE and my Willem burner...
 

Ok, I'll try a slightly older version of BRE again and see what happens. I had no problems with the older version I ran, used it on the atmel 29c256 chip but I used my friend's Burn1 when I did it...so it kinda threw me off with the Willem. Thanks guys! :)

Re: Questions about BRE and my Willem burner...
 

i say sticky the thread, there is some good info here so far keep it comin :6

Re: Questions about BRE and my Willem burner...
 

Well, I downloaded BRE's stable version 2.2 and reburned the bin...have to say the fuel maps look a little different between the two versions, I'll look into it a bit more. Guess I'll find out a bit more tomorrow on the test run, and I left Ben a message on pgmfi about it too...I'll keep you guys updated.

Re: Questions about BRE and my Willem burner...
 

Keep it strictly about BRE and I agree. BRE needs more attention in the HMT world :6

Re: Questions about BRE and my Willem burner...
 

http://forum.pgmfi.org/viewtopic.php?t=12470
and
- The map's fuel formulas for obd0 vtec have CHANGED. They are no longer
the same as the other obd0 formulas. They are now more accurate. Keep in mind
these formulas will NOT change your maps, just the way the values appear.
You will probably notice that the values are quite a bit lower. i.e. a value
of 16 ms before will probably be somewhere around 13.8ms. DO NOT COMPARE MAPS
BETWEEN OLDER VERSIONS OF BRE AND 2.2.3 OR LATER VARIANTS.


So the fuel formulas are different with the newest version, hence the different look in the maps between the 2 versions. the autotune with BRE is great :6 I had my crx 90% tuned until the newest release, then ive had to start all over about 6 times now with my basemap...you shouldnt have many issues with the older version. hope it works out for ya!

Re: Questions about BRE and my Willem burner...
 

+2 BRE is the number one tool thats helped me learn how to tune..of couse thats cuz i got a obd0 vtec...

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

Ok, another update...reburned the SST chip last night with older BRE ver. 2.2 and tried it out. So far, no solid cel so I know I'm burning the chip right, but the car would barely idle. I had to turn my fpr up to almost 55psi in order to get a bouncy idle out of it, and even at that it was breaking up bad at part throttle. Came back in, erased the SST and burned the bin from my 29c256 onto it and just tried it...runs exactly like the old boost bin I had before with no problems at all. Is there some kind of issue with the fuel injector sizing, or am I just some kind of idiot here? :1 Or is the injector latency from the 450's too much to idle properly without tweaking the stock fuel conversion? I'm going to try copying the fuel tables from my boost bin into the n/a bin combined with the stock timing tables and see what that produces. Also, would it make a difference if I have the checksum disabled or not? I've tried it both ways and it seems to make no difference. If none of this works I guess I'll stick the stock 240cc's in and try it. :P

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

One more update lol:

Pretty much copied and pasted the fuel maps from my boost bin(from the vacuum section of the map) into my n/a pr3 bin...worked like a charm. Runs great, fantastic idle, and with the extra timing it helps alot on bottom end to midrange power. Only thing was I still have the annoying 5500 rpm vtec activation point, so I tried to lower it from the stock point I left it at and I'm going to reburn again. If that doesn't work then I'm kinda stumped :P

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

sounds like you got it now! If you have any more issues with BRE. I can try to help. I've gotten quite familiar with BRE since my crx motor swap...

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

Yeah, everything seems to be working just fine now, I think my issue with vtec crossover point was I was trying to change the number, but you need to hit the "enter" key after you type in the value. It usually jumps it to the closest number to what you entered (strange, but if it works then ok). And believe it or not I've been having more luck running the pr3_boost bin's on my n/a motor than the n/a maps themselves. N/a maps seem to break up alot through the rpms, boost maps for some reason are alot smoother, and seem to pull harder on the lower rpm (probably timing related to help spool a turbo quicker).

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

Update: Hadn't checked on BRE in a while, PGMFI has the newest release of 2.2.4b2 beta...gotta say, it's getting better and better every time. It's got a couple new features (alright, so it was released back in November...I'm a little behind :1) that I can see, such as scripts for using the dashboard cel light as either shift light, normal, or a knock light. I'm going to try out the knock light setting, it should be a pretty helpful asset while you're doing street tunes. The map sensor settings has been combined into the Paramaters tab, which helps clean things up a bit and keeps them from getting too scattered around. I gave the launch control a shot in the last release, and it works like a charm, although that's probably old news now. There's also a seperate scripts tab at the top of the window which gives easier access to the available scripts, allows you to change cel functions, rom notes, IACV duty cycle adjust, and fuel scaling in percentages.
Don't worry about the fuel scaling script, there's still the standard right-click function to change injector sizes for easy use, as well as boost efficiency adjust. Unfortunately I'm still waiting on a boost controller and a new battery for my car before I can try burning a bin and seeing if all the features work ok, and I'm in desperate need of a wbo2 so I don't have to work around my friend's schedule whenever I need to borrow his. :P I'll keep updates coming through the next few months and hopefully can help you guys out a little more with BRE. ;D

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

btw BRE supports NG60 roms... same as TE in other words

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

better than TE in my opinion..and I had no friggin idea it supports NG60 roms...wwoooohhhoooooo :S :S

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

oh yes, been using BRE for a PM6 zc since more than a year. Very happy with it.

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

I just downloaded bre and the program wouldnt open???

Re: BRE (OBD0 VTEC) Support...Current Version 2.2.X
 

You need Microsoft .NET framework in order to run the program. If you already have it, try searching around for a different place to download it from, I had heard reports of people having trouble getting it to run. Otherwise if I can find a spot to host the file, I'll dig out the 2 or 3 versions I have and try to host them.