my 03 Yukon slips when shifting from 2nd to 3rd but if I plug in my buddy's snap-on Solus scan tool and go into active testing and turn up the amperage to the line pressure solenoid just .2 tenths of an amp going from 1.0 to 1.2 the thing shifts like its brand new. I understand I can drop the trans pan and get to the solenoid coil in front of the valve body and with a small Allen wrench I can manually turn the amperage up but I don't know witch way to turn it clockwise or counterclockwise can anybody tell me or tell me how to make the change in the amperage of the program so it will save the change without having to reflash the computer