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Good afternoon everyone, forum newbie here. Looking for help with an issue on my 2001 5.9 Automatic. I've owned this truck for a couple of years now and had various issues fixed. But one that I can not get fixed is a complete lack of power towing. I have a 27ft 5th wheel thats only ~8000 Lbs. The truck alone with me and my passengers / family weighs 7980. So, I'm just around 16,000. Going down the highway, especially starting up any grades I rapidly loose speed. I've towed as long as I have been driving with other rigs and know that when you loose momentum its likely not coming back. But to the point... Even on flat ground or a 1% grade, around 65MPH, my choices are OD locked out and almost 3000RPM or OD on and 2000RPM, the 2000 though is the MAX, it will not go past that. While doing research I found TSB 18-024-00 which talks about an issue almost identical to what I am experiencing (my engine is in the date and serial number ranges mentioned). Armed with this knowledge I went to the dealer to have them flash the relevant parts to fix this issue. The technician stated the computers were already at the latest software and there was nothing they could do for me. But happily charged me. I didn't believe them so I argued and went back stating "I asked you to flash it, just flash it" he said "Its the latest version so the computer wont let me flash them" The only things that came of this interaction were getting the 3cyl/high idle software enabled. The technician continued to state "This is a California truck, we can sell you an Idaho truck, brand new"... NO! I've done tons of searching and can't find if there are any differences between CA and Non-CA for 2001, I know all the new trucks are the same due to the new emissions controls. I know I have the issue mentioned in the TSB, is there somewhere other than a dealer that I can get my computer force-flashed to the latest software to fix the TSB? (Without buying EFI Live or Smarty) ? The other claim by the technician was to just use the Edge Juice w/Attitude CTS2 that I had installed in the truck to override it and that it would not hurt the engine or the transmission. I had originally only installed it for the gauges (best PID coverage for the money at the time), but it came with the tuning features for only $100 difference, I originally had no intention of using them. I want my truck to be able to tow in mode 0 (stock-ish) without pushing it. But yes, surprisingly, changing to even mode 1 immediately breaks the 2000RPM limit. Lift PSI is 5 to 7 at this time. Extra info: Things I've fixed: Torque converter surging due to misplaced ground. Stock replacement fuel pump (bad decision I know) Things I've upgraded: BHAF. Edge Juice CTS2 Things I'm trying to fix: The Limit noted in this post (Lack of Power), Low boost / excessive black smoke even on stock mode... need to build the tester. Things I'm wanting to upgrade: Injectors, I read and hear a lot of opinions here +50, +75... I want fuel economy,and power, not trying to hot-rod this, its a tow vehicle. Fuel Pump.. Ive heard good and bad about many brands and am caught up in a brand war here in Boise, one dealer of both FASS and AirDog said they've pulled AirDogs out of the box that didn't work and can't get them warrantied even before install. The other dealer of both says the same about the opposite brand. My friends who's owned these and is a mechanic, but not diesel said just to go with the in-tank conversion and not an expensive setup...