2005 Toyota 4Runner SR5, 4.7 T, AWDFACTORY OEM SERVICE PROCEDURE

SFI System (1GR-FE): Inspection

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Resistance inspection.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Resistance: 6.9 - 7.9 Ω at 20°C (68°F) 

    2. Movement inspection.
      1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
      Fig 1: Checking Movement Of Valve
      G02578044Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Confirm the valve does not adhere.

    HINT

    Bad returning of the valve by catching foreign objects causes subtle pressure leak to the advanced direction. DTC could be detected.

  2. INSPECT MASS AIR FLOW METER 
    1. Output voltage inspection.
      1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
      2. Connect the positive (+) tester prove to terminal 3 (VG), and negative (-) tester prove to terminal 2 (E2G).
      3. Blow air into the MAF meter, and check if the voltage fluctuates.
    2. Resistance inspection.
      1. Using an ohmmeter, measure resistance between the terminals 4 (THA) and 5 (E2).

      Resistance: 

      • 13.6 - 18.4 kΩ at 20°C (-4°F) 
      • 2.21 - 2.69 kΩ at 20°C (68°F) 
      • 0.49 - 0.67 kΩ at 60°C (140°F) 
    Fig 2: Inspecting Mass Air Flow Meter
    G02578045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT THROTTLE W/MOTOR BODY ASSY 
    1. Using an ohmmeter, measure the resistance between the terminals.

    Resistance: 

    THROTTLE W/MOTOR BODY

    Terminal No. Resistance
    2 (M+) 1 (M-) 0.3-100Ω at 20°C (68°F)
    Fig 3: Measuring Resistance Between Terminals Of Throttle W/Motor Body
    G02578046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT KNOCK SENSOR 
    1. Using an ohmmeter, measure the resistance between terminals.

      Resistance: 120 - 280 kΩ at 20°C (68°F) 

    HINT:

    If the resistance is not as specified, replace the sensor.

    Fig 4: Measuring Resistance Between Terminals Of Knock Sensor Using Ohmmeter
    G02578047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Resistance inspection.
      1. Using an ohmmeter, measure the resistance between terminals.

      Resistance: 

      • 2.32 - 2.59 kΩ at 20°C (68°F) 
      • 0.310 - 0.326 kΩ at 80°C (176°F) 
    NOTE: When inspecting the water temperature sensor in water, prevent water flow into the terminals. After inspection, wipe the water off from the sensor.
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