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Home >> Honda >> 1992 >> Prelude S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Engine Controls - System/Component Tests >> Electronic Air Control Valve (EACV)
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Electronic Air Control Valve (EACV)

  1. With ignition off, disconnect 2-pin EACV connector. Using an ohmmeter, measure resistance between EACV terminals. If resistance reading is 8-15 ohms, go to next step. If resistance is not as specified, replace EACV.
  2. Check for continuity between each EACV terminal and chassis ground. If continuity is present on any terminal, replace EACV.
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