GM S10/S15/Sonoma Pick-Ups 1982-1993 Repair Manual

EMISSION CONTROLS

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See Figure 1

There are three basic sources of automotive pollutants: crankcase fumes, exhaust gases and gasoline evaporation. he equipment that is used to limit these pollutants is commonly called emission control equipment.



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Fig. Fig. 1: The emission control label contains a vacuum diagram and engine control adjustment information

 
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