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Home >> Toyota >> 2000 >> 4Runner Base, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - System & Component Testing - 4-Cylinder >> Emission Systems & Sub-Systems >> EGR Vacuum Switching Valve (VSV) >> Camry CNG & Gasoline Models, Camry Solara & RAV4

Camry CNG & Gasoline Models, Camry Solara & RAV4

  1. Disconnect electrical connector from EGR VSV. See EGR VSV LOCATIONS  table. See Figure, Figure and Figure . Using ohmmeter, check that continuity exists between electrical terminals on EGR VSV and resistance is 33-39 ohms at 68°F (20°C). Replace EGR VSV if no continuity exists, or resistance is not within specification.
  2. Ensure no continuity exists between each electrical terminal and body of EGR VSV. Replace EGR VSV if continuity exists between electrical terminal and body of EGR VSV.
  3. To test EGR VSV operation, apply air pressure to port "E". Ensure air flows from port "G". Perform STEP 1 in illustration. See Fig 1. Apply battery voltage and ground to electrical terminals on EGR VSV.
  4. Apply air pressure to port "E". Ensure air flows from filter and not from port "G". Perform STEP 2 in illustration. See Fig 1. Replace EGR VSV if defective.
    Fig 1: Testing EGR VSV (Camry CNG & Gasoline Models, Camry Solara & RAV4)
    G97G06383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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