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Home >> Honda >> 1984 >> Prelude Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Component Testing >> Vacuum Switches >> Switch C

Switch C

  1. Disconnect hose number 15 on control box to intake manifold. Connect a vacuum pump to the disconnected hose. Connect a ohmmeter between the Black/Yellow and Blue/Black wire connector 6P.
  2. Apply 14 in. Hg to vacuum hose. Continuity should be present. Release vacuum. No continuity should be present.
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