On Sep 15, 4:11 pm, lew hartswick wrote:

Throttle position is simply another measurement that is fed into the
computer to help it decide fuel and timing parameters.

OH! I see it has to do with those "new fangled" cars with computers
in them. I quit working on engines before that revolution started.
...lew...

One example of how the skill set is changing. My Dad knew whether Gee
or Haw was left or right. I don't.

Dan