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Home >> Nissan-Datsun >> 1994 >> 240SX Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Swirl Control Valve >> Control Solenoid
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Control Solenoid

  1. Disconnect vacuum lines and electrical connector from solenoid, located near flywheel end of cylinder head. Remove solenoid. Apply vacuum to port "B" of solenoid. See Figure . Vacuum should now be available at port "C", but not at port "A".
  2. Apply battery voltage across solenoid connector terminals. Vacuum should now be available at port "A", but not at port "C". Replace solenoid if it does not operate as specified.
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