It is in the exhaust system before the catalytic converter.
Yes
Yes
Legally, yes.Legally, yes.
I trust you are asking about the catalytic converter, it is located on the exhaust pipe about 2 feet behind the engine. It looks like a muffler.
Check up by the manifolds or anywhere before the catalytic converter.
Gas engine, yes.Gas engine, yes.
depending what engine code you have...either on the catalytic converter , or on the exhaust manifold itself
Maybe fuel filter Maybe plugged catalytic converter
It is illegal to remove any emissions control devices from a vehicle.
i know of two on on the header pipes just before the catalytic converter i can't remember if there are more
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