I drive a 03 jeep liberty renegade. (66, 000 miles) I was driving on the highway when the rpm tach started going back and forth really fast..the check engine light came on and the jeep shut off. I took it and had the diagonostic ran and it was the camshaft posititon sensor. Got a new sensor..i was driving the jeep and it shut off again with the check engine light on again. The mechanic found a mouse nest under the hood of my jeep..could a mouse have chewed through a wire to short the jeep out..if so where would i look to find the wires? Also had the test ran again and it came up camshaft position Circut! please help