Questions about programmer-

[kalantar]

I purchased the Predator Diablosport Intune, I must say I am not impressed so far and need some help on fine tuning it. I currently have 37" tires and 4:56 gears. It rides beautifully as it is (without the Predator Intune) and gets decent mileage on the freeway ,the only problem is a bit gutless when towing my toy hauler (a heavy one at that). I installed the Intune and set it up for the preprogramed 87 octane, while it felt it had a bit more torque and power, the shifting was very rough and highway mileage sucked really bad. So I removed the intune and put it back to stock. Now I am thinking I should either return it, try it out with 91 octane or keep it to use only while towing up steep grades.


I know a lot of you guys here use Predator, what do you guys suggest and what am I doing wrong?