Guys, I have been posting about the problem listed below, but there is a new symptom, when I start up in the morning there is a popping sound like a mild "Backfire" that can be hear from the area under the drivers feet. Here's the rest of the infor, anyone else run into this?:

In the morning when I first start the car, back out of my driveway and proceed to press the gas pedal, my car just, well, doesn't go anywhere, it just ever so slightly rolls as it would in idle. After doing this 2-3 times it picks up a little power and after about 25-35 seconds, its fine. This only happens after the car has not been driven all night and cools down. Its fine upon warm starts.
P.S. New O2 sensors w/ Cat recall
New Exhaust Gas pressure diff. sensor
Recently cleaned EGR
Plugs and wires have ~1K on them


Jesus is Messiah
95 Contour GL 24v