Is it normal for your car to smell after having the crank shaft position sensor replaced It smells like catalatci converter that Right?

It is not normal for your car to smell after having the crankshaft position sensor replaced. The crankshaft position sensor is a small, electronic device that is mounted on the engine block and is used to detect the position of the crankshaft. It does not produce any exhaust fumes or smells, so if you are noticing an unpleasant odor after having this sensor replaced, it is likely due to another issue. The smell you described is similar to that of a catalytic converter, which is a device that helps to reduce harmful emissions from the exhaust system. If you are concerned about the smell, it is best to take your car to a mechanic to have it checked out.