FUEL PIPING C0,U0,U1. 1996 Subaru Outback

21. A Valve to remove Fuel vapors from the Fuel Tank. Two Way Valve. A Valve used to Recirculate Small amounts of Exhaust into the Combustion chambers of the Engine in Order to decrease the Combustion Temperature. thereby Reducing the formation of Smog. producing Nitrogen oxides.

U1 NO.1. NO.1. NO.1. NO.1. NO.1. NO.1.

NO.1.