The only real way is to take it to a garage and get them to check the exhaust emissions. This only takes about 5 minutes and my local garage didn't charge me for this when I did this.
If the emissions are NOT OK, then this could point to problems with the fuel injection system as well. If the emissions are fine, then so is everything else.
replace sensor,catalytic converters smell like rotten eggs when going bad
There's no possible way to pass inspection with a bad catalytic converter, if if you find out you have a bad catalytic converter during your inspection you have a chance after you after you have replaced the catalytic converter and the inspection no no charge/free!!
Transmission torque converter or an exhuast catalytic converter?
No, the catalytic converter is downstream from the EGR valve so it has no effect on it.
A bad coil can damage a converter. If the engine is misfiring, it will cause raw fuel to get into the converter and that can cause failure.
A bad catalytic converter can cause hard starts if it has become clogged. This produces excessive back pressure in the engine.
Bad Gas milege Gives a rattling sound if it breaks down Car stops running if it is totally blocked
Yes it is possible.
They can become clogged or they can burn out.
Yes it does.
Loss of power, poor fuel mileage, converter gets red hot, possibly check engine light will come on.