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*18 Evaporative Emission (EVAP) Control Diagram (’01-04 Models) ’01 model: 11-54 Fuel and Emissions Systems System Descriptions (cont’d) FUEL TANK VAPOR FUEL TANK VAPOR FUEL TANK VAPOR EVAP FTP SENSOR EVAP CANISTER from FUEL TANK VAPOR FUEL FUEL TANK VAPOR FUEL TANK EVAP BYPASS YEL/BLU LT GRN GRN/BLK BLU BLK/YEL RED/YEL BLK EVAP CONTROL EVAP CONTROL EVAP CANISTER VARIOUS LT GRN/WHT PCM The EVAP controls minimize the amount of fuel vapor escaping to the atmosphere. Vapor from the fuel tank is • The EVAP canister is purged by drawing fresh air through it and into a port on the intake manifold. The purging vacuum is controlled by the EVAP canister purge valve, which operates whenever engine coolant temperature is • When vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and regulates the flow of fuel vapor to the EVAP control canister. • During refueling, the fuel tank vapor control valve opens with the pressure in the fuel tank, and feeds the fuel vapor to the EVAP control canister. 03/07/29 09:19:23 61S0X050_110_0054 |