Today i tuned 2012 GMC Sierra HD2500 which has E78 ECM OS 12647731 i'm still using v7.5 build 211
there are a lot of missing tables in E78 i hope if there will be more support for this ECM
tables are:
-B8024
-B8025
-B5208
-B5211
-B7965 can't be changed
-There are no Spark Idle tables
-Idle tables are very poor ( there is no correction tables,No desired air flow table )
-There is no way to put car in open loop and No way to disable LTFT
Thanks in advance