Any ideas what I am doing wrong?? 411 PCM running cal from 2002 chevy express l31. 12212156 OS
Temp--180
VSS--0
TPS--0
Trans in Park
Only DTC reported is P1336 it is listed a few times.
Hit F12
Choose 99-08 PCM
Hit activate
Learning Tab
Hold brake
Hit CASE
EFI Live does nothing when I hit the CASE button????