What year is your car? I assume you have MY99 or before since you're using Hot Wire.
Maybe, the SAFC went nuts? Is the connection between the SAFC throttle wire and the ECU throttle wire good? Mine reads 0% (it goes from 0 to 0.4%) when off-throttle. Before that, it was reading way off number including throttle reading only upto 80% when full-throttle. I reset the safc, and everything became good.
[This message has been edited by tmat3 (edited April 11, 2001).]