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mstordahl
March 2nd, 2012, 02:11 PM
I used the fix checksum box in the newest update and then installed some changes to my truck, now I have the CEL and the checksum code. Is there any other fix to this other than taking it to the dealer for a fresh stock flash?

Thanks!

GMPX
March 2nd, 2012, 02:27 PM
Yes it can be fixed, please read through the tutorial linked to in the V8 software below, pages 3 & 4 explain what to do.
Fixing the checksums is one step, the "CVN Calculation Restore" step must also be done.

Cheers,
Ross

http://download.efilive.com/Staff/GMPX/Cummins_Ref.png

mstordahl
March 2nd, 2012, 03:43 PM
Great, thanks!