Fuel filter head was leaking and causing low fuel pressure and Trans line going to to cooler had a slow leak. I've been watching fluid levels and adding when needed which was not very often. I'm thinking maybe the Trans adapted to low fuel pressure and is still compensating. I rebuilt the fuelfilter head and checked Trans fluid level, level was good but had some dark (clutch material) on the rag. Shifts great just has hesitation from 2500-3000 rpm. No codes and no limp mode. Runs great in two haul. I'm running dsp5 efi tuned by rob that is "tranny safe" any ideas?
