I have a 96 cavalier with a 2.2 that I recently replaced the head gasket
on. It ran great but had a leaky injector, which I replaced. Since then,
the car runs and idles well when cold, but when it is warmed up it idles
so rough it almost dies and I am getting a code 300--misfire detected. I
have replaced the plugs and wires as well as the coils, and am looking for
any help I can get. I believe it is the injection system, but I don't know
how i could have screwed up the installation of a new injector--pretty
basic stuff. Anyone got any ideas???
