I have a 1993 Legacy FWD with the 2.2 Liter engine and an automatic transmission. Lately it has been sputtering and hesitating in this colder weather. I have replaced the ignition coil pack, spark plugs, oxygen sensor, fuel filter, and air filter. On the air filter I am using one of the spectre (Autozone brand) high flow filters, I have had it in for several months and had no issues till it has snowed and gotten cold. I am lost as far as where to look from here, can anyone please help me out!!

Did you replace your plug wires? Saw plugs and coil were. It was the wires on my 98.

Any check engine lights?