Thermactor Air Bypass Solenoid

The Thermactor Air Bypass solenoid is controlled by the EEC-IV computer and provides vacuum to the Air Bypass/Air Control Valve. With vacuum present, air flows through the secondary air injection system. With no vacuum, the air from the air pump is dumped to the atmosphere. Essentially, this turns the secondary air injection system on or off. The secondary air injection system adds air to the catalytic converter to improve the burning of NOx gases. This reduces emissions.

Copyright © 1995, Ted Felix