Auxiliary Emission Control Device (AECD) definition
Auxiliary Emission Control Device (AECD) means any element of design which senses temperature, vehicle speed, engine RPM, transmission gear, manifold vacuum, or any other parameter for the purpose of activating, modulating, delaying, or deactivating the operation of any of the emission control system.
Auxiliary Emission Control Device (AECD) means an element of design as defined in part 86.