Hey, I am having some issues with transmission. I am getting a p0756 code and have high line pressure while in 2nd gear. Line pressure at idle in 2nd gear is 180psi, all other gears are pretty well bang on spec. I have already changed the b solenoid. What could cause line pressure to be high on only one clothe one clutch pack? Also dpf is deleted and am running Dirty Diesel custom tunes.