Ahhh, found it. The posts in the following thread describe my problem exactly.
http://www.automotiveforums.com/vbul...d.php?t=256787
I think I'll take my range sensor off/apart this weekend and have a look at the internals.
I have a friend who used to be an Isuzu tech, so I'll see if he can set me up w/the pedal sensor.
Thanks!
--Eric