I was driving my car and the ac comp shut off. The blower kept working . I did the engine diagnostic and came up with code 51. Now my car also studder. witch can POSSIBLY be the ecu or TPS.. ??? I'm not sure. I've been looking for the engine diagram to fix the problem. If any one has a link to lead me to it please post it. A link that shows where all the sensors are located would help. Thank you... I need MY ac...