Cummins ISX400, can`t install OEM ECM calibration!

[Nilao]

I think the issue is you failed to save a template that tells the ecm where to find all the source addresses for the TPS, and various other items that the body control module would normally pass on to the ECM. Did you happen to make a copy of the original file in the ECM before your overwrote it?

PS: on a Volvo I think there are no less than 7 body computers that talk to the ECM.