Hey guys, here is the problem. Lately when I come to a full stop at a
traffic light or stop sign, my cars RPM's drop to 200 or so and the car
feels like its about to die. I recently had my alternator replaced.
After I had it replaced I experienced the same problem so I went to a
local shop and they changed my spark plugs, wires, and fuel filter.
Everything was fine until a month later (which is now). At highway
speeds the car is doing fine. The car almost stalls at traffic lights
about once in every 5 traffic lights. Could it be some sensor or could
it be that the alternator i got from Autozone is garbage? I feel like
the car is misfiring when I'm giving it gas after a traffic light. The
tailpipe looks pretty black (didnt really pay attention before). Any
ideas or help would be appreciated. BTW, I keep my car in good shape by
changing all fluids and having routine maintenance done. Hopefully this
wont turn into an expensive problem. Thanks again.

Eugene