You have to have it changed, first. Then. I would take the vehicle to a reputable repair facility to investigate the cause. It can be many different things...The average person could spend a bundle changing sensors, wires, plugs, etc. trying to fix this one! Not nessicary, a plug cat converter could just be due to old age of the cat converter... after a long time, they can wear down basically, the stuff inside em can get weak, break and clogg all on its own.
there is no drive cycle for a catalytic converter it could be plugged up....
Nothing
You replace it.
The life of your catalytic converter depends on the condition of the engine and the fuel you're using. If the fuel has the wrong additives, the catalytic converter can become plugged up. If the engine burns oil the oil vapor will build up on the catalytic converter and it can become plugged. Otherwise, if the catalytic converter isn't plugged, don't replace it.
Catalytic converter plugged?
Yes, if it is plugged the exhaust can't get out of the engine.
Catalytic converter plugged.
I dont believe it will if the converter is cracked but if the converter is plugged it definetly will.
Could be a plugged catalytic converter, plugged fuel filter,
Plugged fuel/air filter? Plugged catalytic converter?
Check that catalytic converter is not plugged
Plugged fuel filter? Plugged air filter? Plugged catalytic converter?