Just joined and right now I have no history, hope to change that soon. The reason I just joined is the FCA modification I just had, it is awful, so I changed out my stock ECM back to my Green Diesel ECM and filled it up. FCA mod. had a 4 to 5 second turbo delay from a dead stop and no power what so ever. The FCA recall does not mention a ECM update, just a mod to the TCM and the PCM, but it went in driving fine with the stock ECM, and came out driving like S___. I was getting 23.5 to 24 combined, and never got over 19 after mod.. I am just wandering if anyone else has had the FCA update and what were your results?