Removing the plugs lets air into those 2 cylinders only. A plugged catalytic converter will normally only affect driving performance, not starting.
You need to determine WHY it wants to start when you remove 2 plugs. Does it matter which 2, or any 2? Have all of the plug wires been removed recently?
Which engine does this car have?
Tuesday, January 24th, 2012 AT 7:47 PM