Isx 15 files

[Rawze]

(05-02-2021 )tree98 Wrote:  Could you elaborate on this Rawze? Are there parameters that are learned by the ecm while running? They have to start out blank when flashed in?? I'm probably way off here but just trying to learn why you couldn't flash an identical truck and engine with the same demandate file?

When someone flashes a factory file with Insite and a factory-made file ... It does a "first boot" and clears, then rebuilds all the collected data for how the engine runs. Cylinder balance data, injector flow offsets, and quite a bit of other information is built back up during the first 8~ish or so minutes of engine run time. ... After that, much of that data is never collected or adjusted again... some of that data is continuously updated though.

if someone "copies" the program out of one truck and puts it into another using a tool like Calhterm ... a lot of that data gets transferred as well... and this is not good. not only that but other truck specific data like vin#, mileage data, detected devices and their identities that have been collected in the engine on the J1939 get transferred and all sorts of other things that are not good.

hence.... THESE IDIOT TUNING GUYS WHO COPY PROGRAMS FORM ONE TRUCK TO ANOTHER ARE MORONS!... and this should never be done.