Hello, I bought a project 2001 dually missing its original LQ4 engine. I got a great deal on a brand new 2018 L96 so I swapped it in. I did the knock sensor relocation and used the Lingenfelter converter box. I'm using the original throttle body with an adapter plate, original map sensor,maf,Corvette fuel filter,deleted the vvt and installed a new GM LQ4 cam. I bought adapter harnesses for the injectors. Truck runs but rough like a lean misfire complete with smoke out the tailpipe. Obviously, injectors,intake and head flow are totally different than the old LQ4.
I bought me a MPVI2 and I'm going to learn to tune. Right now I was to make certain it will idle and drive out properly so I'm not harming the engine or other components. On the scanner STFT was -15% which I believe is lean. The last engine I tuned was a 455HO in a GTO so I'm new to flashing computers.
I searched for L96 swap tune info on the forum but didn't find anything meaningful to me.
Good advice on what to do to get this truck running decent enough to move it around in the yard and not hurt itself while I figure out how to fine tune it would be greatly appreciated!