Evaporative Emissions System - TOYOTA: Description: Notes

The Toyota Case Storage System is designed to reduce hydrocarbon emissions from the fuel system by use of a modified fuel tank, a sealed filler cap, and a venting system consisting of; a Thermal Expansion Tank, a Fuel Vapor Storage Case (one or more as required), a Purge Control Valve (Engines with Air Injection), or Vacuum Switching Valve (used on models with Engine Modification system), a Breather Valve (used on 1971 Corolla 1200 models with Air Injection), and an Air Filter.