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.
If your catalytic converter needs replacing, then one of the problems listed below most likely contributed to its failure. Here is an example of catalyst in different stages of damage (or lack of). Engine Tune-up A number of problems could occur to the catalytic converter as a result of an engine that is out of tune.