Replaced the camshaft position sensor in my 2004 PT Cruiser Turbo. CEL came on during the drive home and with anything beyond just a slight dip of the throttle the car would buck like a wild bull. I limped home the last couple of miles, checked codes, ordered the part from the dealer ($55), picked it up on the way home the next day (drove the Crossfire to work that day) and installed it in about 10 minutes. Problem solved.