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Home >> Toyota >> 1992 >> Land Cruiser >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Air Injection System >> Vacuum Switching Valve (VSV)

Vacuum Switching Valve (VSV)

  1. Locate VSV on left side fenderwell (front valve). Blow air into nozzle "E". Air should come out of nozzle "P". See Figure.
  2. Apply battery voltage to VSV terminals. Blow air into nozzle "E". Air should come out of nozzle "F". If valve does not function as described, replace VSV.
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