Outside chance of throttle icing (that is quite a stretch on my part.....never had a report indicating this occurrence).
Beyond that the throttle position sensor/driver/throttle body are one component and there have been some actual failures (minimal response to throttle input as you described).
Rob
Beyond that the throttle position sensor/driver/throttle body are one component and there have been some actual failures (minimal response to throttle input as you described).
Rob