Scot - if you have a multimeter you can test them. Slip in some paperclips or something into the TPS. Turn the multimeter to v. Slowly turn the throttle blade open. If it goes OL while opening then you have a dead spot. You could also tap some wires into the map sensor and run them to the probes for the mulitmeter in the cabin. Have someone run shotgun and read the output under boost. Again if it goes OL or backwards while building boost, the sensor is shot. Just an idea.
