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Home >> Nissan-Datsun >> 1982 >> Sentra Base, 4D Sedan, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Gas RECIRCULATION System >> Testing >> Vacuum Delay Valve
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Vacuum Delay Valve

  1. Remove vacuum delay valve. Apply air pressure to EGR valve side of vacuum delay valve. Air should flow through valve.
  2. Apply air pressure to thermal vacuum valve side of delay valve. Resistance should be felt.
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