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Home >> Toyota >> 1992 >> Land Cruiser >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Air Injection System >> Air Pump

Air Pump

  1. Disconnect hose at air pump outlet. Attach Air Pump Tester (09258-14010) with .217" (5.51 mm) orifice to hose. See Fig 1.
  2. Start engine and increase engine speed to 1200 RPM. Tester gauge should read in Green area. If reading is in Red area, replace air pump assembly.
Fig 1: Testing Air Pump & ASV
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