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ASCNG 25ASCNG 25, VOYAGER II
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. EMISSION CONTROL SYSTEM 83 EMISSION CONTROL SYSTEM GENERAL INFORMATION The emission control systems used on both the compressed natural gas (CNG) and gasoline powered vans equipped with the 3.3L V-6 engine are the same. This is except for the deletion of certain com- ponents on the CNG vehicle. They are: ² The EVAP canister from the fuel tank and venting into the atmosphere. Because the engine is not using gasoline, and the CNG cylinders are sealed to the atmosphere, EVAP canister and canister purge solenoid are not used with the CNG system. For all other emission control system diagnosis, testing and component removal or installation, refer to the 1994 Town & Country, Caravan, and Voyager service manual (number 81-370-4105). See Group 25, Emission Control System. ² The EVAP canister purge solenoid (duty cycle) ² The EGR valve and connecting tube The EGR valve vacuum/electric solenoid (EET) The function of the EVAP control system is to pre- vent the emissions of gasoline vapors from escaping ² [ Pobierz całość w formacie PDF ] |
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