Had an idle and stalling problem on a 95 4 cylinder 626. Had a code for O2 Sensor/Lean Condition. Cleaned throttle body, IAC, replaced Oxygen sensor. Found Intake gasket leak and replaced gasket. Also replaced valve cover gasket, plugs and wires due to arching from leaking oil in the spark plug wells. The idle seems more consistent now, but the engine shakes bad at idle in gear. Previously replace one of the transmission mounts when the transmission was rebuilt.
Any ideas on what else could cuase this bad shale at idle?