Hello I have a 2012 Izusu NPR HD with a stock gen4 6.0l with 6l80e transmission with a e38 ecm. This truck had been running on CNG Fuel (compressed natural gas). I am converting this truck to run on E85 and gasoline. I have done all the mechanical work and taken all the CNG tanks and stuff off the truck and added all the gasoline and E85 to the truck. New tank fuel pump PTFE lines and Flex Fuel sensor in the return line. The last 2 things I need to do is wire the flex fuel sensor wire to the e38cm and the fuel pump trigger wire to either a switched 12+ or somewhere in the ECM if there is a correct wire for the fuel pump. I have GM delphi 50lb flex fuel injectors installed. The wire harness did not seem to be diffferent for the CNG other then the different injectors it had and little injector conversion pigtails I removed. I have purchased HP tuners and the pro cable and will be using a innovate LM2 for wide band 02 and will try to get the wide band 02 signal back to the hp tuners this way. My questions are many because I am brand new to tuning a GM ecm with hp tuners. I have purchased 2 credits also. I also have another LS3 t56 engine harness and e38 ecm that came out of a wrecked 2015 camaro ss 1le for another vehicle swap going into a 69 camaro at a later date and another 6.2l 6l80e engine with e38 ecm out of a wrecked 2008 caddilac escalade for a swap going into a 72 nova at a later date. Can I use any fueling information from these other ecms and copy the fuel trims or configurations into my Izusu e38 ecm to help with this? I know the caddilac engine had DOD or VVT originally and the LS3 did not and I am pretty sure the Izusu does not have DOD or VVT. I need to get this vehicle up and running soon and any help will be appreciated. I do have some experience tuning but with after market stand alone setups. I have tuned a BBC on a FAST XFI a bit also a SBC on a ACCEL DFI and 13B turbo rotary on a Electromotive TEC2 and then a Haltech 1000 on E85. But I am humble and definitely not a professional by any means. Also I have replaced the heads that were damaged on the motor and did a rocker trunnion upgrade and hardened pushrods and arp head bolts on the Izusu engine but otherwise it is bone stock.