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 a failing catalytic converter triggers a âcheck engineâ light, it is important to have the problem corrected as soon as possible. Replacing a catalytic converter is a costly proposition, and diagnosing a problem with it is best left to a professional. It can have a major impact on the vehicleâs safe operation.