2006 Toyota Camry Base, AutomaticFACTORY OEM SERVICE PROCEDURE

SFI System (1MZ-FE/3MZ-FE): Inspection

  1. INSPECT MASS AIR FLOW METER 
    1. Check the output voltage.
      1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
      2. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
      3. Blow air into the MAF meter, and check that the voltage fluctuates.
    2. Measure the resistance between terminals 4 (THA) and 5 (E2).
    Fig 1: Inspecting Mass Air Flow Meter
    G04391297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    MASS AIR FLOW METER - SPECIFIED CONDITION TABLE

    Condition Specified Condition
    -20°C (-4°F) 13.6 to 18.4 kΩ
    20°C (68°F) 2.21 to 2.69 kΩ
    60°C (140°F) 0.493 to 0.667 kΩ

    If the result is not as specified, replace the MAF meter.

  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Measure the resistance between the terminals.

      Standard: 6.9 to 7.9 Ω at 20°C (68°F) 

      If the result is not as specified, replace the OCV assy.

    2. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
    Fig 2: Inspecting Camshaft Timing Oil Control Valve Assy
    G04391298Courtesy 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.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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