That doesn't sound quite right. At idle, the throttle position is open a bit, but I think it's usually in the area of 7% or 8%. Is it idling OK?
At WOT, you should be seeing the reading at around 100%. If it's not, a good check would be to have someone depress the throttle all the way, and see if you can open the throttle a bit more at the throttle bodies. There were a bunch of '96/'97 cars that couldn't get to WOT because the throttle cable was either not adjusted correctly from the factory, or it was a little too long. My car, for example, has a cable that's probably 5mm too long and I had to remove one of the throttle cable adjustment screws to get the car to go to WOT.
