When I start my car in the morning, after I first put it into gear (any gear), it almost, but not quite stalls. Sometimes it will even backfire? (not really, but that is the only way I can think to describe it--loading up the intake). I don't have the TH fix, and this engine only has 2500 miles on it. It ran really good, but lately I have become concerned. The gas milage has dropped from 28mpg to about 22mpg or less. After it runs for 5 minuts or so.... It is fine. Does anyone care to throw in a bench diagnostic from my description? I am clueless.
TIA
***edit*** And there are NO cels, so I can't pull a code. (I tried)