Yes, an engine misfire will cause this and will ruin the converter. It may also be partially clogged.
The converter is plugged and needs to be replaced
Partially clogged! Y-THINK-Y
A partially clogged converter will cause this. Also an overly rich fuel/air mixture or a cylinder misfire is a cause.
Converters get hot when they operate and this is normal. However a partially clogged converter will get excessively hot and my even turn red. This will cause a loss of power, stalling, and surging.
Your converter is clogged and needs replacing.
If the catalytic converter is removed the computer will turn on the check engine light, and fuel economy may suffer.
An engine that burns oil will usually foul the spark plugs. That, in turn will cause ignition misfire, higher emissions and likely damage the catalytic converter.
It is clogged or you have a miss on the driver side bank of the engine which is causing raw fuel to be dumped into the converter where it is burning. If you find your engine is running fine and has no miss then the converter is clogged.
Partially clogged or engine misfire.
An engine that burns oil will usually foul the spark plugs. That, in turn will cause ignition misfire, higher emissions and likely damage the catalytic converter.
The catalytic converter usually has an Oxygen Sensor before and after the converter. The hot exhaust gases of the exhaust heat up a catalystic and the voltage is proportional to Oxygen. By measuring before and after the catalytic converter, you have a sense if the Catalytic converter is working correctly in cleaning up the exhaust. The exhast to be cleaned up correctly requires the PCM to sometimes run Lean fuel mixture, to clean up NOx, and sometimes Rich mixture to clean up HC (Hydrocarbons). So PCM cycles the fuel mixture between rich and lean many times in the process of driving, so that to get optimal efficiency of the catalytic converter. However, if you have a vacuum leak, your engine will run LEAN and the PCM will compensate and force it to run rich instead. After a while, by running rich too much, you are throwing unburned fuel into the exhaust pipe, causing Catalytic converter to become Red hot and causing it to fail. So in short, running Rich, not lean, can cause converter failure.
check the catalytic converter. if the engine isisnt running hotter than normal it is most likely plugged exhaust somewhere likely in the catalytic converter