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Hopefully not too long till this is available in Australia!
Any ECU remap is detectable if they delve far enough, which they certain can at AMG. Will they do it? Depends on your failure mode. A sensor blow here and there. sure. Tranny? Yeah sure, if you have a nice dealer. Blown engine? Try anyone, but you are not getting a new engine if the car is tuned. They will find out.
If you want to give yourself the best chance, get a second ECU.
It definitely will be the case down the track with the S/H market uptake of this platform, taking the massive depreciation hit and normal devaluation leaves the S/H car buyers with more mod money to play with
I called Eurocharged Toronto today, $2500 for the ODB tune. Apparently this ODB is the same exact tune without having to remove the ECU. Won’t give me any information on what the tune is adjusting but want my money. Sorry I’ll pass.
I called Eurocharged Toronto today, $2500 for the ODB tune. Apparently this ODB is the same exact tune without having to remove the ECU. Won’t give me any information on what the tune is adjusting but want my money. Sorry I’ll pass.
There is nothing special about the OBD tune. I think people really don't understand what happens when a tune is performed or how it is done. The only difference between sending off your ECU or plugging into the OBD2 port, is the method of extracting the binary file, or Hexdump, off the ECU's memory. This binary file is the ECU's "tune" and is essentially a 3MB long string of numbers organized in a certain fashion that the ECU can address to obtain information on the various "maps". Once this file is extracted, it no longer matters how you obtained it. The tuner will modify certain areas of the file which represents commanded torque, Lambda targets, etc. Once modified it is then rewritten to the ECU memory, again the method might be different but accomplishes the same thing. That means whether the you pull the binary file from the OBD or extract it directly off the board, someone like Eurocharged will make the same changes to the binary file meaning it is the "exact same tune".
As for disclosing what is changed, that is akin to disclosing their intellectual property and if I asked them I would expect them to tell me to **** off. Generally all tunes will adjust targeted lambda at power enrichment, when power enrichment comes on indexed to MAP and TPS, adjusts the driver torque commanded tables, adjust targeted spark advance, reduce torque management thresholds, etc. If you have DP's, secondary O2 sensor may be deactivated or cat efficiency tests suppressed or eliminated so it does not trip the MIL (or whatever MB call the engine light). Does this really help or do you want them to tell you exactly what tables are changed and by how much? Why would they do that?
This is a small view of a W204 C63 binary file for example. Each one of the numbers represents a number on a table that serves a certain purpose. This is what is being modified.
[QUOTE=SilversledVH;7620322]There is nothing special about the OBD tune. I think people really don't understand what happens when a tune is performed or how it is done. The only difference between sending off your ECU or plugging into the OBD2 port, is the method of extracting the binary file, or Hexdump, off the ECU's memory. This binary file is the ECU's "tune" and is essentially a 3MB long string of numbers organized in a certain fashion that the ECU can address to obtain information on the various "maps". Once this file is extracted, it no longer matters how you obtained it. The tuner will modify certain areas of the file which represents commanded torque, Lambda targets, etc. Once modified it is then rewritten to the ECU memory, again the method might be different but accomplishes the same thing. That means whether the you pull the binary file from the OBD or extract it directly off the board, someone like Eurocharged will make the same changes to the binary file meaning it is the "exact same tune".
As for disclosing what is changed, that is akin to disclosing their intellectual property and if I asked them I would expect them to tell me to **** off. Generally all tunes will adjust targeted lambda at power enrichment, when power enrichment comes on indexed to MAP and TPS, adjusts the driver torque commanded tables, adjust targeted spark advance, reduce torque management thresholds, etc. If you have DP's, secondary O2 sensor may be deactivated or cat efficiency tests suppressed or eliminated so it does not trip the MIL (or whatever MB call the engine light). Does this really help or do you want them to tell you exactly what tables are changed and by how much? Why would they do that?
This is a small view of a W204 C63 binary file for example. Each one of the numbers represents a number on a table that serves a certain purpose. This is what is being modified.
There is nothing special about the OBD tune. I think people really don't understand what happens when a tune is performed or how it is done. The only difference between sending off your ECU or plugging into the OBD2 port, is the method of extracting the binary file, or Hexdump, off the ECU's memory. This binary file is the ECU's "tune" and is essentially a 3MB long string of numbers organized in a certain fashion that the ECU can address to obtain information on the various "maps". Once this file is extracted, it no longer matters how you obtained it. The tuner will modify certain areas of the file which represents commanded torque, Lambda targets, etc. Once modified it is then rewritten to the ECU memory, again the method might be different but accomplishes the same thing. That means whether the you pull the binary file from the OBD or extract it directly off the board, someone like Eurocharged will make the same changes to the binary file meaning it is the "exact same tune".
As for disclosing what is changed, that is akin to disclosing their intellectual property and if I asked them I would expect them to tell me to **** off. Generally all tunes will adjust targeted lambda at power enrichment, when power enrichment comes on indexed to MAP and TPS, adjusts the driver torque commanded tables, adjust targeted spark advance, reduce torque management thresholds, etc. If you have DP's, secondary O2 sensor may be deactivated or cat efficiency tests suppressed or eliminated so it does not trip the MIL (or whatever MB call the engine light). Does this really help or do you want them to tell you exactly what tables are changed and by how much? Why would they do that?
This is a small view of a W204 C63 binary file for example. Each one of the numbers represents a number on a table that serves a certain purpose. This is what is being modified.
There is nothing special about the OBD tune. I think people really don't understand what happens when a tune is performed or how it is done. The only difference between sending off your ECU or plugging into the OBD2 port, is the method of extracting the binary file, or Hexdump, off the ECU's memory. This binary file is the ECU's "tune" and is essentially a 3MB long string of numbers organized in a certain fashion that the ECU can address to obtain information on the various "maps". Once this file is extracted, it no longer matters how you obtained it. The tuner will modify certain areas of the file which represents commanded torque, Lambda targets, etc. Once modified it is then rewritten to the ECU memory, again the method might be different but accomplishes the same thing. That means whether the you pull the binary file from the OBD or extract it directly off the board, someone like Eurocharged will make the same changes to the binary file meaning it is the "exact same tune".
As for disclosing what is changed, that is akin to disclosing their intellectual property and if I asked them I would expect them to tell me to **** off. Generally all tunes will adjust targeted lambda at power enrichment, when power enrichment comes on indexed to MAP and TPS, adjusts the driver torque commanded tables, adjust targeted spark advance, reduce torque management thresholds, etc. If you have DP's, secondary O2 sensor may be deactivated or cat efficiency tests suppressed or eliminated so it does not trip the MIL (or whatever MB call the engine light). Does this really help or do you want them to tell you exactly what tables are changed and by how much? Why would they do that?
This is a small view of a W204 C63 binary file for example. Each one of the numbers represents a number on a table that serves a certain purpose. This is what is being modified.
While the tune is exactly the same, loading it through the OBD port makes things much easier since it's a major PITA to physically access the ECU in our cars.
They never said the OBD2 tune is different or better. It's the same tune as the bench flash tune, but now you dont have to worry about removing ECU and relocating it and all that bull****.
If they can figure out a way to get prices down to the W204 level for handheld flash at home ability, then this is a big win for the platform.
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