Group 3 278 l A A mj A an 4 D ia i V I FITTING inlet mild veg FITTING inlet mana vac CONNECTOR vac hose mem seams 534145 I i CONNECTOR eIIIIse FITTING In are mn E control vac div vlv A CI ssceao A 1254622 A Group 3 670 A lr i Ap I AC Q E e I 1 0 lv i J1 I vaavz air ini by pass VALVE air diverter VALVE ece 1257793 TvpI aI Typical Q I ow I Q Op 2 eq a in SWITCH EGR vlv vac SWITCH elect cont SWITCH EGR vlv vac cont emiss cont valve cunt 373510 460586 Iooowea seams 460408 For specific model application usage and part number identification on typical views refer to the individu il parts catalog groups These illustrations are representative of the actual service parts No scale ur size ra lationship is intended c IIe I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 1OA 9 78 ear 3 000 GROUP I