krusstygun, sorry if I mislead you. I was saying a sensor, not necessarily the speed sensor of the Dodge example. Knowing which sensor is a little beyond my expertise. You can try the trial and error method of unplugging a single sensor and seeing what the results are. If no change in the performance of the Trooper, this maybe the problem sensor. This is how we use to check spark plugs, pulling the wire one at a time until you found the bad plug. Try the same thing with the sensors,, one at a time pull the wire and see if there is any decrease in performance. If there is decrease in performance, the sensor is working. If the engine has no change, the sensor maybe bad or not working. Just an idea!
rocmoc n AZ/Mexico