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Home >> Honda >> 1988 >> Civic Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Component Testing >> Constant Vacuum Control (CVC) Valve
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Constant Vacuum Control (CVC) Valve

Start engine. Verify presence of manifold vacuum to CVC valve. Disconnect CVC vacuum hose at EGR solenoid. Connect vacuum gauge. If vacuum reading is not about 8 in. Hg, replace CVC valve.

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