There is no such thing on this car.
You're going to have to be more specific with your question. There are many components to the emissions control system.
Answering "What emissions control device on a car lowers carbon monoxide content?"
no the fuel pump it self does not control emissions
To control emissions a cupola may be fitted with a cap that is designed to pull the gases into a device to cool the gases and remove particulate matter
The weapons were stored in an auxilary hut next to the HQ. An auxilary cord ran across the room to the speak.
the use of auxilary views often make it possible to omit one or more regular views.
Emissions.
because your emissions need controlling, pretty basic stuff here
have sex
Yes. The conditional phrase "should have been seen" contains a string of auxilary verbs.
the catalytic convertor
the control measures taken before combustion to reduce pollution