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DIY ECU Reflashing

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Old Jun 22, 2006 | 05:21 PM
  #16  
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Originally Posted by Sleeper2G
the ceiling is for FULL FLASHES, not just changes and such.
Source?
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Old Jun 22, 2006 | 05:23 PM
  #17  
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Originally Posted by Sleeper2G
the ceiling is for FULL FLASHES, not just changes and such.
When you make changes to the ECU tables, you are required to do a full flash. It doesn't just change one part of it, you have to reflash the image as a whole.
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Old Jun 22, 2006 | 11:04 PM
  #18  
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Originally Posted by JeffR116
When you make changes to the ECU tables, you are required to do a full flash. It doesn't just change one part of it, you have to reflash the image as a whole.
That's what I was going to say . Basically you d/l the full ECU table...make your changes and then upload it back (flashing). There is no "partial" flashing going on.

Yeah I am sure you can do it more....heck Al has on his...but i'd rather not mess with it...i play with software for a living and the one thing I have learnt is that you never trust hardware!!

Honestly been thinking of getting another 05 ECU, copying over the flash from my current one and then just meddle with the original ECU. If it ever goes bust I plug back in the "base" ECU and rock on .

Let me know how it goes though Jeff be interesting to see what can be done with the new head.
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Old Jun 22, 2006 | 11:15 PM
  #19  
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I guess I'll actually have to get off my lazy butt and throw my PLX M300 in the car finally now, maybe even the hallman pro or profec B that are sitting on the shelf.....and I swore I wouldn't mod this thing at all, KEEP IT UNDER 300HP
Does anyone know if the logging software being developed will allows you to log wideband input on another 5v channel?
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Old Jun 23, 2006 | 12:49 AM
  #20  
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Yea good luck with the whole 300 thing. You planning on having diesel-like torque to compensate?
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Old Jun 23, 2006 | 12:54 AM
  #21  
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Originally Posted by NDgsx
I guess I'll actually have to get off my lazy butt and throw my PLX M300 in the car finally now, maybe even the hallman pro or profec B that are sitting on the shelf.....and I swore I wouldn't mod this thing at all, KEEP IT UNDER 300HP
Does anyone know if the logging software being developed will allows you to log wideband input on another 5v channel?
The Evo datalogging software should have that ability. I believe the ability to read analog voltage as well as the RS232 direct serial output is being included in the software architecture.
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Old Jun 23, 2006 | 09:26 PM
  #22  
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I played around with flash write failure rates awhile back and was quite surprised by my findings. A typical device will sustain about 75,000 write/erases before having some portion of the flash go bad. You will also, typically, see the flash write rates slow down as the flash is used. This is pretty normal, from what I have found, but is not an early indication of failure.

There are however some interesting things that will affect the longevity of a flash cell. Noisy power and fluctuating power while performing flash writes can seriously degrade a flash unit and cause premature failure in the device. Unlike hard drives, there is no FAT table to mark a bad cell, so that cell will continually get used, which corrupts the data. Using a network of capacitors and resistors, and one small POT I was able to get some modern USB flash devices to become inoperable after only a few hundred writes. This being the case, it is very very importent that you have a nice strong battery, that is fully charged, when you perform your flashes.

Your milage will also vary depending on the type of flash memory that is being used.
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Old Jun 23, 2006 | 09:32 PM
  #23  
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Originally Posted by NDgsx
I guess I'll actually have to get off my lazy butt and throw my PLX M300 in the car finally now, maybe even the hallman pro or profec B that are sitting on the shelf.....and I swore I wouldn't mod this thing at all, KEEP IT UNDER 300HP
Does anyone know if the logging software being developed will allows you to log wideband input on another 5v channel?
Currently there is no good logging software available, imho. You could plug the money down and get the LM-1 + AUX box and have about 99% of everything you need to tune, but you will still have no way of determining what load cells you are in on the ECU. There is a lot of discussion going on right now on how this works, but I am certain, based on my experience with other more advanced software, that the load is not based on MAP. There is most certainly at least one, if not more, VE tables involved, along with a small host of other tables that the ECU will use to determine the proper fueling for the car. I would give it a few more weeks, if not months, and let the guys get the entire ECU decoded. Otherwise you will just find yourself constantly re-working stuff with each release anyway. I also wouldnt pay a single red cent for the the stuff Evo4Mad is working on until you see something released, and have verification of the sampling rates etc. I have a strange feeling about his posts for some reason, and Im not convinced that he is close to releasing anything useful. But, thats just a feeling...
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Old Jun 23, 2006 | 09:45 PM
  #24  
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yeah,this forum, or the ECUFlash! forum, Al and Wartalon explain the flash process, and the difference between a partial and full flash, search before you speak:-}
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Old Jun 23, 2006 | 10:33 PM
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Originally Posted by Sleeper2G
yeah,this forum, or the ECUFlash! forum, Al and Wartalon explain the flash process, and the difference between a partial and full flash, search before you speak:-}
Why don't you show us what you are talking about. I think you are getting confused.
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Old Jun 25, 2006 | 09:34 PM
  #26  
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I/ve been searching and searching but I can't find it here or at Evotuners, it's somewere, I'll try the tactrix forum, thanks for wasting my weekend trying to please you!:-)
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Old Jun 25, 2006 | 09:40 PM
  #27  
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Lol. Whenever you find it let us know
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Old Jun 25, 2006 | 10:27 PM
  #28  
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Originally Posted by PDXEvo
There is a lot of discussion going on right now on how this works, but I am certain, based on my experience with other more advanced software, that the load is not based on MAP. There is most certainly at least one, if not more, VE tables involved, along with a small host of other tables that the ECU will use to determine the proper fueling for the car. I would give it a few more weeks, if not months, and let the guys get the entire ECU decoded. Otherwise you will just find yourself constantly re-working stuff with each release anyway.
You are right, I've worked with DSM ecus and I can only imagine the stock Evo ecu is going to be more complex. I'll probably just get a cable and set the fuel maps where I want them to be, and just leave timing alone. When I actually feel like modding my car I'll make a harness to put the AEM from the GSX in. As funny is this probably sounds to everybody on here I have a much easier time just using the AEM than anything else.
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Old Jun 25, 2006 | 10:29 PM
  #29  
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whoa! this is confused me! This Flash is same thing that DynoFlash or shive Flash or in mail Flash or Tune Flash Tuner shop?

I should go to Sent Someone to Flash my ECU or i can do that Download that stuff?
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Old Jun 25, 2006 | 11:33 PM
  #30  
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Originally Posted by hanahawaiian
whoa! this is confused me! This Flash is same thing that DynoFlash or shive Flash or in mail Flash or Tune Flash Tuner shop?
Al is now offering an E-Flash where he will email the flash (as a file) to you and you can use this program and the cable to flash it into your ECU. So yes you can get a Dynoflash from AL and install it using this program.

Not sure if Shiv is offering this functionality yet or not. Other shops can use this tool to write a flash to your ECU. Pretty sure one of the Northwest shops is using it now...but I forgot the name.

I should go to Sent Someone to Flash my ECU or i can do that Download that stuff?
If you don't know how to modify timing and fuel maps its probably still best to get the ECU flashed by a qualified tuner. Even if you get maps off of this site (or from other people) and they have the same mods & same car it might not run exactly the same. So its probably still best to go through some qualified tuner.

Last edited by codgi; Jun 27, 2006 at 12:11 AM.
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