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Home >> American Motors >> 1982 >> Spirit Base, 2D Hatchback, 4.2L Eng VIN C, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Auxiliary Emission Control Systems >> Air Injection Systems >> Testing >> Check Valve

Check Valve

Disconnect air supply hose at check valve. With engine running above idle speed, listen and feel for exhaust leakage at check valve. If check valve leaks excessively, replace as complete assembly.

NOTE: The Dual Air Injection system should be diagnosed together with the Computerized Emission Control (CEC) System. See Computerized Emission Control article in this section.
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