was driving my regal to work the other day and all of a sudden it jus dies without warning and did not restart apon dieing one the side of the road my noob mistake of running batt dead while i was waiting for my buddy to tow it home i left key on havent really had time to check it out was thinking the cat maybe i just put a motor in but the car was sitting for over a year at a farm i was told that the cat could be clogged plz any help is great