Riddick
Well-Known Member
Were you ever able to verify this ?
I will be tuning my truck with CP next week. Already sent them my ECM reads from the stock ECM and the replacement one.
I have made some changes to to the BCM with AlfaOBD. Will this matter @Jimmy07 ?
I can get you some reads after tuned if you want to PM me what to do
Pete
What Jimmy posted is accurate, log will show aftermarket ECM detected. However, I have not swapped in my OEM ECM to see if this clears. I imagine it will but if they dig deeper and look at mileage there could be a difference. The dealer would have to really dig deep to know you had a different ECM in there.
Your BCM changes will stay after you swap your ECM. Keep track of where your fuel filter and oil life percentages are, they will likely reset to 100% when you swap in the new ECM.