hi all just had the trans rebuilt for my 95 contour.thank god for the warranty i bought!!!.i brought it home and all was fine..i let car sit for about 28 hours in the garage,very rainy/snowy/humid while it sat. i started it up went to pick up kids last night, the check engine light came on 3 times and the car ran like ####.i brought it back to multistate this morning and 3 cels were found.dont know the exact codes but they were for maf sensor,o2 bank lean and one for internal air temp too cold.the trans worked fine during these cels coming on.i asked if it was possible a sensor connection wasnt reseated properly and i was told that could of been the problem.all sensor connectors were reseated/sealed by the shop.its running great now but im really waiting for morning to start a cold engine .my question is can a rebuilt transmission cause cels to pop up because its a new piece of hardware to the computer?sorry for the lenght of this post .i had alot to say!