Your biggest problem with overfilling the engine is not damage to the converter but damage to the engine itself. Overfilling causes the crankshaft to make contact with the oil. This will cause a situation where air will be mixed with the oil. This air mixed with the oil causes the oil to lose it's lubricating properties as air is a poor lubricant. This will cause the engine to overheat and will result in severe wear to all moving parts within the engine. If you overfill the engine drain the excess oil out immediately.
Yes it can
Yes, it can damage the engine.
Your biggest problem with overfilling the engine is not damage to the converter but damage to the engine itself. Overfilling causes the crankshaft to make contact with the oil. This will cause a situation where air will be mixed with the oil. This air mixed with the oil causes the oil to lose it's lubricating properties as air is a poor lubricant. This will cause the engine to overheat and will result in severe wear to all moving parts within the engine. If you overfill the engine drain the excess oil out immediately.
Yes, you can do serious damage to the engine if the converter is clogged.
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 flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfireA flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfire
The heat generated by the converter can back up into the engine and damage it. Cause it to overheat, blow a head gasket or damage the heads.
The catalytic converter
If the converter is partially clogged it can cause the engine to overheat which can cause serious problems. Other than that if will not harm the engine.
Fuel/air mixture too rich, engine misfire, or damage.
You can permanently damage the catalytic converter (if fitted) which can be costly to replace.
the check engine light flashing on any car means that there is a very strong miss fire that could damage the catalytic converter.the check engine light flashing on any car means that there is a very strong miss fire that could damage the catalytic converter.