Could really use some help on this.
I have been struggling to tune this 5.3 Envoy trailblazer and have added some logs and tune file. Has terrible fuel mileage even when The VE tuned within 3%. Drives like only 1/3 of the pedal has power and just kind of does nothing giving it anymore gas. played with the torque values and it doesnt change anything. Fuel pressure good at 58lbs has the life time in tank fuel filter.
Started over with the mostly factory tune but Maf failed for LTFT tuning to see how bad it is from factory. Does this look like a fuel delivery problem ? I can never hear my fuel pump running which is strange for a GM vehicle lol. WBO2 asking for lots of fuel and narrow bands drop pretty low under engine load.