I think Steve is on to something, most of the time program execution works great. It is when it goes into the long pauses, necessarily so, that I can't stop the program. Wait........Just tried it and it seems to work !!!
I put Steve's code in where there was the pause 20000 and it I pleased thus far in my tests on the bench. I noticed the other day while driving that unless your going uphill your are really giving your car very little throttle and therefore the stepper motor must do the same thing and make slow adjustsments and await the result and either adjust or continue to hold the throttle right where it is. This program will hopefully do that. I'm sure that it will need further tweaking. I just mounted my stepper motor and made an arm that is mechanically connected to my throttle valve. Next I am going to build the hardware for the project, (an enclosure for my electronics, mounting switches etc). My Kudos to Steve and Art. I will post my results in few days.

Thank You Thank You
Thank You Thank You