Deepnine, I already answered your PM on EvoM, but just in case anyone else is looking for it, here's a stock 1999 USDM GSX Federal MT ROM from my old ECU:
Your 97 ecu should connect and work alright with evoscan and all that you will need is the cable and the software. It will not connect with the high transfer rates of the 98/99 ecus but it should be at least as fast as obd2 logging with the additional benefits of a few more loggable parameter the most important being knock.
Trying it out and reporting back would probably be useful to have a good idea of how well it works on different production date 97 ecus (it has been shown to work well with late production 97 ecus) and it is FREE and produced by a member of this community. I would get both programs and play with them.
I noticed that I didn't mention my sample rate speed, about 70 samples / second on my 4-97 Talon. I might be able to get more if I turned off the logging to display and stuff like that.
Compare that to OBDII with an ELM323 chip, 4 sample / second.
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Wes - '97 Talon Tsi AWD
Ugh, my I'm going cross-eyed staring at H8 assembly after spending so much time with SH on the Evo.
It looks like IDA's H8/500 processor option is disassembling this correctly; the init/reset and invalid instruction handlers look basically right to me.
Am I reading Colby's release notes correctly, in that OpenPort 2.0 should be able to supply enough voltage to flash these ECUs? I may not have a totally useless ECU on my hands after all.
Yea, IDA Pro disassembles our ROMs just fine, you just have to work out the memory layout. Because ROM doesn't have all of it, you have to specify sectors.
Fuel maps are also in some concrete places in memory, as far as I know, and they have signatures depending on their types.
I could create and post a C++ program that creates the layout, but I don't know if it's legal
Also the IDA allows to create signatures that allow to define all maps easily. Again, legality aspect is unknown...
The evoflash / evostat and evoread I could not find a link, but with these or other software we can read and reflash the eclipse 98-99 ecu.
With the reflash possible we enconter another problem: editing/ modding the hex file
maybe we could use tunerpro and make definition files for this hex file.
That way we could edit the hex file in a friendly way inside the tunerpro and reflash the ecu with this hex modified file, now with kashima programmer and in the future with the ecuflash / openport 2.0 cable
Maybe someone that actually understand this thing could hop in.
Just in case you guys havn't check the ecuflash site in a while, they say that its now possible to reflash th evo 5/6 ecu and all 2g ecu's from 96-99'.
I'm going to download the new version and see if anyone has written a definition file yet.
It looks like we need a special connector to send the init voltage you were talking about madman
Just in case you guys havn't check the ecuflash site in a while, they say that its now possible to reflash th evo 5/6 ecu and all 2g ecu's from 96-99'.
I'm going to download the new version and see if anyone has written a definition file yet.
It looks like we need a special connector to send the init voltage you were talking about madman
I would like to hear the results of an attempts as well, as I don't have the connectors right now in my car for flash plug, and I ran into issues with injector swapping.
Seems that I will have to add a wire for pin 79? on my car for flashing...
Does anyone have an existing account on openecu.org so they can post the rom for the 99 gsx and request a xml definition for it? I tried to register but it seems they have registration closed.
Why don't you just read the rom that is on your car? After you read it you might want to head over to evolutionm.net and ask for help with a definitions file there, some of those guys enjoy a challenge and will work on other cars.
same question has anyone been able to mod a rom and reflash to the ecu? got a 98 ecu on my 95 and I am very interested, in theory just need the open port 2.0 cable and make the 79 pin mod to reflash my ecu right?
I could get the cable, but unfortunately I don't have a flash plug in my car and I have pretty much no free time right now.
Also I have issues with injector firing order when I use 98/99 ECU in my car, so while I haven't found the right order in which I have to swap injector pins, I'm running with the old ECU.
How is your car running? Have you swapped any of the pins at the ECU, or anything else to compensate for the 2Ga CAS?
swapped injector wires then the tried plug wires 2341 as magnus says and no good car still vibrates between2k-3k rpms like before the injectors wire swap
Does this evoscan program work on 95 eclipse? Would it be better then pocketlogger?
From my experience 97/97/99 year cars are amazingly fast and easy to log, on everything else it's a gambling. I couldn't log many of the older model year cars or read DTCs from them.
yes, you can use evoscan to log 1995 ecus.
its way slower than on 98 ecus but work fine.
Ok Thank you very much for the reply. i kno it is only $25 but i didnt want to watse the money on the cable and it not work. alo would i get the 1.3 cable ? there site is kinda confusing me with the cables and what one to download. as i have obd2 and not obd1. wich i love as i can scan my car with my scanner. so thank you.
o and i herd they sell the cables on ebay for like $20. but i cant find them. and i would like to find one that is usb and not the seriel port. anyone know where to find them? thanks
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~Brian
Last edited by whiteboyz; 11-02-2009 at 10:01 PM.
Reason: Auto-merged with previous post to prevent "bumping"
There is a discussion about 98/99 ECUs that are flashable. I would personally go for OP 2.0 so that if you upgrade the ECU you can do some serious tuning.
But OP 2.0 doesn't allow AIC/AYC/ABS logging IIRC. So if you have an Evo, maybe OpenPort 1.3 is better. I don't know if it's software or hardware limitation.
Either way, read all the info Ceddy has posted, there is a lot to learn. Then you'll be able to decide.
P.S.: Maybe someone wants to upgrade his OP 1.3 to OP 2.0 and can sell you his old one for cheap.
. so thank you. 
