Bad TPS would usually be indicated by random onset of elevated RPMs , usually sticking at 2,200-2500, that generally would reset only blipping the throttle hard or, preferably, by shutting down the engine and restarting.
The engine cutting out as you described sounds more like a bad fuel filter, clogged or crimped vacuum line or loose coil connectors, but I'm a relative simpleton with such matters.
Keep us in the loop and surely one of the resident gurus will help you to get to the bottom of it!
