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Home >> Toyota >> 2007 >> Tundra Base, 4.0 U >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1GR-FE) - System Testing, On-Vehicle Inspection, Removal, Inspection & Installation >> Camshaft Oil Control Valve >> On-Vehicle Inspection

On-Vehicle Inspection

  1. INSPECT CAMSHAFT OIL CONTROL VALVE 
    1. Connect the intelligent tester or Techstream to the DLC3.
    2. Start the engine and turn the tester ON.
    3. Warm up the engine.
    4. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1 or VVT CTRL B2.
      2. Techstream - Select: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2).
    5. Check the engine speed while operating the Oil Control Valve (OCV) using the tester.

      OK 

      CAMSHAFT OIL CONTROL VALVE

      Tester Operation Specified Condition
      OCV OFF Normal engine speed
      OCV ON Soon after OCV switched from OFF to ON, engine idles roughly or stalls

      If the result is not as specified, check the oil control valve, wirings and camshaft timing gear.

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