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ECUflash New EcuFlash 1.38 for 2G?

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I don't know about the scanmaster cables, but the regular ones that work with tunerstein or MMCD on a Palm will work with Evoscan as long as you purchase a USB to serial converter that HAVE FTDI chip inside. There's few of them on ebay for cheap. Also need to install ecuflash so it installs the needed driver on the process.

You can even make you own 1G-serial cable. I got a schematics from this forum. Just was a Diode and a resistor.
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So to be clear...Ceddy was "moddifying" the 99 ECU table or just found the stock tables on the ECU?

I'm just trying to figure out if the issue is where they are located on the ECU or if in fact they will re-write back.
 
Everyone knows the 2g timing and fuel tables. Thus dsmlink. So no, he's not discovering something new in the factory tune.

Ceddy found it using a software program that can edit 1989-1999 ecus without the need for an eprom or daughterboard, since the 1998-1999 ecus are reflashable from the factory.
 
Can I help somehow? I can't read a ROM from my car since I don't have a flash plug in my car (I swapped ECU in 96 car), but if you need I could write a program that scans through the file and searches for a pattern if you know what to look for...
 
But going this route with a 1g is tempting!!! With a 1996+ 2g this is a no-brainer if the reflasher works. A 1998-1999 ecu is far less expensive than a 1995 ecu. Swapping to a 1g cas is even less of a head ache no changing the firing order on the plugs. no editing the 1995 eprom to invert the cas for the fuel injectors.

Swapping from from 95-97 2G ECU to 97-99 ECU is pretty simple as well, you just swap plug wires and 4 pins at the ECU so that the injectors work as expected.

Took me like 2 hours in a dark parking lot for the first time, but I can do this swap in 10 minutes now (including all the time you need to get side panels and ECU off).

Below are the images of what you need to swap (I really hope I havn't messed up ROFL )


EDIT: !!!!!!!!!!!!!!!!!!!IMPORTANT!!!!!!!!!!!!!!!!!!!!!!!!!!
The ECU swap procedure is not correct, after some additional testing it turns out that something is wrong. The following approach causes detonation (20-30 knocks) even at -0.4 bar boost pressure and also causes noticeable and unpleasant vibration at 2500-3000 RPMs! Leaving the injector wires intact decreases detonation to 2-3 knocks, but the vibration is close to that of the full procedure. There must be something else missing to perform the swap correctly.
 

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Well. I have evoscan and the cable should be shipped shortly. I'm impressed with the layout and neat features. But my brother was hoping to be capable of logging his 1997 ecu. . . I've been reading and I'm confused. . . Does evoscan function for a 1997 or not. Apparently 1998-1999 is fine. But I thought that only ECUFlash was limited to 1998-1999 ecus. ??? My research has lead me to believe that the data rate was too slow for EvoScan to function properly with 1995-1997 ecus before. Now the website is stating that it will work with any mitsu car with an obdII plug.

Also, when selecting ecu obdII or device setup obdII, it states in the list of log items that "obdII development in progress". And hardly any of the items look like they even function. Do I run the device under "mitsubishi" device setup and "EFI" ecu selection?
 
When I read the evoscan thread I came to the understanding that the 95-96 ecus could work but were pretty much useless for logging with it. The 97 ecus worked but weren't any better than ob2 logging (sample rate), and the 98-99 ecus were extremely fast. It took me a few times reading through the entire thread to come to that conclusion since there is some conflicting information that comes from the rapid development of new support but that is my understanding. I haven't purchased evoscan yet but I was planning to until money got a little tight and I needed a new laptop. I won't do any purchasing for my car now until spring though so hopefully we'll find out a bit more about the abilities of ecuflash soon.
 
Well having obd2 logging sample rate isn't that bad considering the alternatives are the same speed. At least this program has fantastic graphing, user interface, and viewing options. I'll be looking around for a 1998+ ecu in the mean time.
 
I tried to log two 97 ECUs today and they are blazingly fast when you use Mitsubishi/EFI option. I can't say they are any slower than 98/99, I think the transfer speed is equal. Very realtime :thumb:

95/96 on the other hand...

P.S. There is only one thing that still bugs me with 97-99 ECU's. The parameters like Injector scaling, calculated load, speed and some others are calculated via formulas that are not exactly verified, so I don't know how much I can trust them. Speed for instance shows around 500kmph on 97 ECUs, adjusted temperature doesn't match the primary temperature and differs between 97 and 98/99 ECUs and no one knows for sure what the injector scaling value is for DSMs. But everything can be adjusted so EvoScan is a good piece of software overall, we just need to catch up with the Evo and Subaru crowd.

By the way, knock sum works on 97 ECU just fine as well as on 98/99 :)
 
So logging works just fine on the 97 ecu, just reflashing it for new values is a no go..... Suck.

d
 
Anyone have some links to learning how to disassemble this stuff? I used to be a pretty serious computer geek and I could code some half assed stuff but this is something thats a bit out of my league without some direction. I'm not saying I'll be putting much time into learning to help the project between school and work but I would try and there might be other people interested in helping too.
 
I tried to log two 97 ECUs today and they are blazingly fast when you use Mitsubishi/EFI option. I can't say they are any slower than 98/99, I think the transfer speed is equal. Very realtime :thumb:

. . .By the way, knock sum works on 97 ECU just fine as well as on 98/99 :)

THANK you !!! This makes me feel good about the purchase. Since I come from 1g tuning, having the ease of knock sum feedback would be very nice.
 
I tried to log two 97 ECUs today and they are blazingly fast when you use Mitsubishi/EFI option. I can't say they are any slower than 98/99, I think the transfer speed is equal. Very realtime :thumb:

95/96 on the other hand...

P.S. There is only one thing that still bugs me with 97-99 ECU's. The parameters like Injector scaling, calculated load, speed and some others are calculated via formulas that are not exactly verified, so I don't know how much I can trust them. Speed for instance shows around 500kmph on 97 ECUs, adjusted temperature doesn't match the primary temperature and differs between 97 and 98/99 ECUs and no one knows for sure what the injector scaling value is for DSMs. But everything can be adjusted so EvoScan is a good piece of software overall, we just need to catch up with the Evo and Subaru crowd.

By the way, knock sum works on 97 ECU just fine as well as on 98/99 :)

Cool stuff! This is an exciting time for the 2G ecu.

If injector scaling works the same as a 1G ecu, then the formula is 31050 divided by the decimal value.

Is the code in the flash chip different than the 95 eprom code?
 
If injector scaling works the same as a 1G ecu, then the formula is 31050 divided by the decimal value.

Decimal value of cc? There is only one window to enter the data, by default it reads 513 or something like that.

Is the code in the flash chip different than the 95 eprom code?
Most likely it is, the CPU is different, so I guess that the assembly will be different as well.

So, can anyone share his ROM image with me so that I can try to understand some of it? I can't find where to add that extra flash plug wire to my 96 car, so I can't download the one I have in my ECU for now. But I would really like to try and understand the code that's kicking inside while the car is waiting for a new transmission.
 
Yea, I see the box for the injector scaling and it just reads 513. And you can go into the box and edit the number to 450.

As for speed, we'll have to log the mph as we're driving at a consistant speed. With the number that evoscan spits out we can see if the scaling is correct or if not what needs to be adjusted in the formula.

Being that evo mafs are not 2g mafs, I'll guarantee you the g/sec number will be wrong and all other airflow estimates.
 
So, can anyone share his ROM image with me so that I can try to understand some of it? I can't find where to add that extra flash plug wire to my 96 car, so I can't download the one I have in my ECU for now. But I would really like to try and understand the code that's kicking inside while the car is waiting for a new transmission.


PM me your e-mail and I'll send you a copy of my ROM.
 
From what I remember about my EVO, the stock injector scaling is set to 513 as well.
 
So for 450s at stock fuel pressure (43.5psi), the actual injector scaling amount should be between 383 and 338 in EvoScan? Post 6 mentions the scaling should be between 15% and 25% less. But 513 which is stock scaling for the evo ecu does not go along with that rule for the evo ecu and injectors. . .
 
I can't find where to add that extra flash plug wire to my 96 car, so I can't download the one I have in my ECU for now.

The Flash Plug goes to pin 79 on the ecu, you most likely won't have a wire there. You'll need to get a pin header from the junkyard, or just jam a piece of wire in there if you want to rig it.


Being that evo mafs are not 2g mafs, I'll guarantee you the g/sec number will be wrong and all other airflow estimates.

Maf compensation is taken care of in the MAF Table in the ecu, so airflow numbers should be accurate.


Here is a link for injector scaling. Take a look at post 6 for an estimate on what # to use for an injector.

The evo guys are kind of goofy with there injector scaling. They put a smaller size so there cars will run rich and have a safe tune. In the DSM world we have always entered the actual flow rate of the injector, then adjusted the fuel map to make it run richer if need be. Also many injectors don't flow what they are advertised at, like PTE 780s only flow 750.
 
The Flash Plug goes to pin 79 on the ecu, you most likely won't have a wire there. You'll need to get a pin header from the junkyard, or just jam a piece of wire in there if you want to rig it.

Thank you! I will definitely try to do that. I had to swap injector pins on one of the headrs, so I hope it will be a breeze :)

I also started a thread (http://www.dsmtuners.com/forums/tun...14-evoscan-ecuflash-tuning.html#post151634966) where I will try to gather all the information about EvoScan and EcuFlash. If you see that something is plain wrong or missing please let me know.

I really want to try and collect all the information so that we can find a way to tune our ECUs as soon as possible :)

Also my spelling is bad, I know :rolleyes:
 
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