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Home >> Honda >> 1994 >> Prelude 4WS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Air Intake System >> Intake Control Diaphragm (H22A1 & H23A1 Engines)
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Intake Control Diaphragm (H22A1 & H23A1 Engines)

Connect vacuum pump to vacuum hose on intake control diaphragm. Apply vacuum. If diaphragm holds vacuum, intake diaphragm is okay. If vacuum does not hold, inspect vacuum line for improper connection and disconnected hose. If hose is okay, replace intake control diaphragm.

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