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Fig. 16: Cutaway View Of Typical Integrated Electronic EGR Valve
Courtesy of GENERAL MOTORS CORP. SPARK CONTROLS (SPK) Spark control systems are designed to ensure the air/fuel mixture is ignited at the best possible moment to provide optimum efficiency and Ensure vacuum hoses to the distributor, carburetor, spark delay valves, thermal vacuum switches, etc., are in place and routed properly. On Check for visible modification or replacement of the feedback carburetor, fuel injection unit or injector(s) with a non-feedback carburetor or AIR INJECTION SYSTEM (AIS) Air Pump Injection System (AP) The air pump is a belt-driven vane type pump, mounted to engine in combination with other accessories. The air pump itself consists of the Fig. 17 . Check for missing or disconnected belt, check valve(s), diverter valve(s), air distribution manifolds, etc. Check air injection system for proper |