Hard to start, loss of power, excess fuel usage, and overall poor performance.
Yes, it most certainly can if the converter is clogged.
Yes, if it is clogged very badly.
It could, yes.
No, if it is clogged the only fix is to replace it.
A clogged converter will cause an extreme loss in power, poor mileage, and hard starting. If it is clogged really, really, bad it may cause the engine to not even start.
Yes if it is totally clogged.
Could be: a clogged fuel or air filter a plugged catalytic converter
The converter is clogged or the engine is running way to rich or has a misfire.
Many things but you might start with a clogged catalytic converter.
Not unless it is clogged or damaged. You cannot run the car without a converter if that is what you are asking. It is illegal and the engine will not run properly with the converter removed.
Not likely but possible.
1) clogged EGR ports--might have to be cleaned 2) check engine timing is in spec 3) make sure car is not overheating 4) catalytic converter 1) clogged EGR ports--might have to be cleaned 2) check engine timing is in spec 3) make sure car is not overheating 4) catalytic converter