Let us spray. 1  When you're at the perfume counter, buying something smelly for your nearest and dearest this Christmas, just don't ask what's in it. 2  When you're at the perfume counter, buying something smelly for your nearest and dearest this Christmas, just don't ask what's in it. Hannah Betts argues you may get a nasty surprise.
Best Answer: When a catalytic converter goes bad it will restrict the flow of exhaust gases through the exhaust system. Basically, if the exhaust won't come out easily, air won't be taken into the engine easily to mix with the fuel to be burnt and give you power.
Will a bad Catalytic Converter ruin my engine? I have a 2002 Nissan Altima. It is on its second engine because I was an idiot and let it run hot (at least I think that's why.)I've heard this make and model has a problem with the catalyst, and it can affect the engine. Others tell me it won't I need a new catalytic converter, but I really don't have the money right now.