To adjust your control pressure cable, you need to look at the black plastic
arm that the trans control cable connects to. On the upper end, it is shaped like an arrow. There will be a matching arrow pointing at it from another part of the throttle linkage. You turn the adjuster nut on the cable making it longer or shorter until the 2 black pointers point at each other exactly. Thats it, unless you dinked around with your throttle cable.
Then, you will have to adjust the whole system to get it in synch.
Have fun.
Dr.D