The Idle is very low and erratic when started and then increases and
smoothes out a little (still rough). ECU reported Oxygen Sensor.
Replaced Oxygen Sensor, Wires, Cap, Plugs and Rotor with not much
difference. The third plug was seized, but I managed to get it out.
Tried to find vacuum leak with carburetor cleaner, none found. It
seems as though the idle will try to hunt every now and then. EGR valve
is not stuck open (checked with vacuum pump). I didn’t change the PCV
valve or Fuel Filter. Has anybody had a similar problem ? Any help
would be appreciated