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Home › Toyota › 1997 › Previa LE, AWD › Repair and Diagnosis › Engine Performance › System › Engine Controls - System/Component Tests › Emission Systems & Sub-Systems › EGR Check Valve

EGR Check Valve

  1. Remove EGR check valve. See Figure. Apply air pressure on Orange-colored side of EGR check valve. Air should flow through EGR check valve.
  2. Apply air pressure on Black-colored side of EGR check valve. Air should not flow through EGR check valve. Replace EGR check valve if defective.
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