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I know BULLYDOG came out directly and said they have read the ECM in house, but are storing the base tunes inside the flash unit. So maybe they cracked an ECM open to read the chip directly instead of going through the CAN BUS. H&S said they got them from a database, so who knows.
We'd all like to see EFI Live available for LML trucks, but it doesn't seem like it will be possible for a little while at least.
That's why I asked each company that question to see.Quote:
Originally Posted by THEFERMANATOR
Maybe Ross & Paul will give it the Bullydog approach by reading right from the flash and start from that.
I think the problem is, you would have to read directly from the flash on each ECM before programming it. Tuners aren't going to want to take apart the ECM to make it "flashable".
I think Ben talked about that earlier.
You right. Bullydog has a way somehow of using one cal for all. I'm not sure how many different calibrations there are, but if they are somewhat close you could do that? I may be totally off here....Quote:
Originally Posted by TDFDiesel
I thought it was pretty stupid myself. I guess they think $ now is worth the risk of paying later. It's not going to make waves until they start selling to the public. Then the war will start!Quote:
Originally Posted by Redline Motorsports
I heard they used a Ford ECM to get it to work.....
Paying later? Are you thinking of the EPA or GM coming down on them?Quote:
Originally Posted by bobo
I have not seen on the LML ECM if it is possible to read the flash contents from within the CPU using a debug port, they may have removed the debug pads from the PCB. On MANY, if not all European cars using this Bosch ECM, this function has been disabled in the CPU anyway, so it's next to (if not) impossible to get the tune even by pulling apart the ECM. FYI, the flash memory on these ECM's is in the Infineon CPU itself, there is no 'chip on the board' as such.Quote:
Originally Posted by THEFERMANATOR
You would not go to the trouble of doing all that anyway when the files flashed in to the ECM can be downloaded from TIS unencrypted, however, again I make the point, using those files would be a breach of GM's agreement to use that service and you might get yourself in some strife.
I will say good on BullyDog for making it happen and giving LML owners a chance to get a tune. I also feel GM are going to want to know how the ECM was hacked so fast (when Bosch probably told them it couldn't be) and the EPA will then be asking GM why there is videos on YouTube of LML's blowing soot out the exhaust when they supposedly can't be tuned.
Is GM's TIS system open to anybody who wants a subscription? Could you theoretically just double the price and have every user pay for a subscription to the TIS system? You force the first year and thereafter is on them to renew and maintain the subscription?
Anyone can sign up to TIS, it's about $1K per year to be able to flash controllers using TechII, Mongoose etc.
But that doesn't give you the rights to all GM's files, see my post here:
Reading the contents of an ECM is not in violation of that agreement, using the files TIS downloads to your PC to perform the flash is. Maybe GM don't care, who knows?
But TIS doesn't operate like you might imagine, it's not like a tune library where you can download whatever you want.
Cheers,
Ross