Upgrading Os on E67
I am interested to know if i am able to upgrade, update the OS on my E67. Presently i have a 2006 CTS-v and would like to have the same operating software from an 09+
Current OS is 12605669 and the OS i am looking at is 12632176.
Reason being the MAF tables are better in the newer OS vs the older ones that copy the old PCM limitations.
American Muscle, European Design, Japanese Tactics
The 2006 and 2008+ CTS have entirely different electrical architectures. I doubt a calibration designed to work with the 2008+ CTS would work in an 03-07 CTS... between discrete inputs/outputs to the ECM, GMLAN vs. Class 2, etc...Originally Posted by Naf
You might be able to make an 09 Trailblazer or 09-12 Colorado E67 calibration work...seeing as those vehicles still used the older Class 2 architecture (with discrete cruise control inputs, discrete outputs for speedo/tach/etc.
Ben
2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison12.9s @ 108 mph
many thanks to Ross and Paul
Probably 09-12 Colorado would be best. It closest-matches the 06 CTS...because cruise control is a resistor ladder input to a single pin...instead of 3 separate discrete +12v inputs like the Trailblazer
2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison12.9s @ 108 mph
many thanks to Ross and Paul
I thought all e67 were born the same...
I know the e67 offers both canbus and class2 communications that is why i chose it over the old pcm for my build. I did not know there was a difference not allowin me to upgrade the os. I will ask my tuner about custom os with the better maf table.
American Muscle, European Design, Japanese Tactics
Ross would know better than me...
But I think E67's that are calibrated for the newer GMLAN-only vehicles have the Class-2 comms disabled, and discrete tach/speedo/cruise control/crank request outputs/inputs disabled. In which case they wouldnt work in an older Class-2 vehicle.
2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison12.9s @ 108 mph
many thanks to Ross and Paul
Maybe not, I only dive as deep as we need to.
I no longer monitor the forum, please either post your question or create a support ticket.
GMPX, How may i update the MAF table in the older OS to match the newer os?
Thats all i would like to do ultimately...
American Muscle, European Design, Japanese Tactics
You can't, you would just need to copy/paste the values from one to the other.
I no longer monitor the forum, please either post your question or create a support ticket.
Ok, thats good news..
Thank you
American Muscle, European Design, Japanese Tactics
I went onto the EFI compatible list and my ecm is not compatible with the 08 trailblazer, though it has the MAF scalin i am looking for.
I currently have 12605669, and i had access to 12618164, most of my information copied over, others i had to copy from the 07 V...
On the list, it doesnt look like its compatible. There are differences but i am shootin in the dark.
Let me know your thoughts
Naf
American Muscle, European Design, Japanese Tactics
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