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

SFI System (2UZ-FE): Inspection

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

      Resistance: 

      • 12.5 to 16.9 kΩ at -20°C (-4°F) 
      • 2.19 to 2.67 kΩ at 20°C (68°F) 
      • 0.50 to 0.68 kΩ at 60°C (140°F) 
    Fig 1: Measuring Resistance Between Terminals
    G02578069Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      CAMSHAFT TIMING OIL CONTROL VALVE

      Tester Connection Specified Condition
      1 (+B) - 2 (GND) 6.9 to 7.9 kΩ at 20°C (68°F)

      If the result is not as specified, replace the camshaft timing oil control valve.

    2. Check the operation.
      1. Apply battery voltage across the terminals, and check that the spool valve operates.
      Fig 2: Checking Spool Valve Operates
      G02578070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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