Thanks...I see where you asked about the LPFP control module. I actually had the Torqbyte PM3, and it was paired with the TTRS pump, but the problem persisted when I deleted all that and went back to just the OEM module and OEM pump. Two years ago, following the rebuild, is when I swapped the injectors and returned to the OE control module and pump, new HPFP and upgrade, and tried an aftermarket LPFP upgrade (which failed to operate) in the original basket. Nothing helped. So I had reached the point of nothing left to try. I was literally stumped...and it then took some digging through GIACs records for them to find and then retrieve the exact file name that their dealer selected to be loaded back in 2016. And then more time finding the one loaded way back in 2010 or 2011. This original file we sought was a to be the file I had prior to trying the DM tune in 2014. When we found and got that one loaded, all was good again.