Replace the catalytic converter.
there is no drive cycle for a catalytic converter it could be plugged up....
Yes, a car can be driven without a catalytic converter. However, it is illegal to drive a car without them because of emissions.
No
No, the catalytic converter is part of the exhaust system. The drive train is the engine, transmission, and differential.
If you drive your car without a catalytic converter, you can be pulled over and given a ticket. You cannot drive your car with a lot of noise, it's considered a violation of the noise ordinance.
Yes it does.
It is not advisable.
Can? Yes. Should you? No. It is illegal to drive a car that came equipped with a catalytic converter without one. There is no benefit to removing a converter from a modern car.
Yes, you can do serious damage to the engine if the converter is clogged.
Yes, and it is illegal to drive a car with the converter removed.
The catalytic converter is most probably broken