Larry and Greg,

You guys say that black box on top of the valve cover also controls shifting? Mine is there and I fixed some broken lines when I bought the car but always thought it's only use was for EGR and cruise control. The shifting in my car has always been ok, cruise never worked, figured it was the computer control under the dash, and I have thought about removing the box because it's in the way of valve adjustment. Guess I may have to scrap that idea if it also tells the tranny when to shift.