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SFI System (2TR-FE): Inspection

  1. INSPECT INTAKE AIR FLOW METER SUB-ASSY 
    1. Check the operation.
      1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
      2. Using a voltmeter, connect the positive (+) tester prove to terminal 3 (VG) and the negative (-) tester prove to terminal 2 (E2G).
      3. Blow air into the mass air flow meter and check that the voltage fluctuates.

      If the voltage does not fluctuate, replace the mass air flow meter.

      Fig 1: Applying Battery Voltage Across Terminals 1 (+B) And 2 (E2G)
      G03081539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      4 (THA) - 5 (E2) 12.5 to 16.9 k at -20°C (-4°F)
      4 (THA) - 5 (E2) 2.19 to 2.67 k at 20°C (68°F)
      4 (THA) - 5 (E2) 0.50 to 0.68 k at 60°C (140°F)

      If the result is not as specified, replace the mass air flow meter.

      Fig 2: Measuring Resistance Between Terminals
      G03081540Courtesy 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: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      1 (+B) - 2 (GND) 6.9 to 7.9 k 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.

      Check that the spool valve is not stuck.

      HINT:

      The spool valve may not return if foreign objects are caught in it. This may cause subtle pressure leakage to the advance side, and a DTC may be set.

      Fig 3: Inspecting Camshaft Timing Oil Control Valve Assy
      G03081541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT THROTTLE W/MOTOR BODY ASSY 
    1. Check the resistance.
      Fig 4: Applying Battery Voltage Across Terminals
      G03081542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      1 (M-) - 2 (M+) 0.3 to 100Ω at 20°C (68°F)
      3 (E2) - 5 (VC) 2.0 to 4.0Ω k at 20°C (68°F)

    If the result is not as specified, replace the throttle body.

    Fig 5: Measuring Resistance Between Terminals
    G03081543Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT ACCELERATOR PEDAL ROD ASSY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      5 (EP1)-4 (VCP1) 1Ω M or higher
      2 (EP2) - 1 (VCP2) 1Ω M or higher

    If the result is not as specified, replace the accelerator pedal.

    Fig 6: Measuring Resistance Between Terminals Of Accelerator Pedal Rod Assy
    G03081544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      1 (E2) - 2 (THW) 2.32 to 2.59 k at 20°C (68°F)
      1 (E2) - 2 (THW) 0.310 to 0.326 k at 80°C (176°F)

    If checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. After checking, wipe the water off the engine coolant temperature sensor.

    If the result is not as specified, replace the engine coolant temperature sensor.

    Fig 7: Measuring Resistance Between Terminals Of E.F.I. Engine Coolant Temperature Sensor
    G03081545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT KNOCK SENSOR 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      1 (Ground) - 2 (Output) 120 to 280 k at 20°C (68°F)

    If the result is not as specified, replace the knock sensor.

    Fig 8: Measuring Resistance Between Terminals Of Knock Sensor
    G03081546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT E.F.I. CIRCUIT OPENING RELAY ASSY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      3-5 10 k or higher
      3-5 Below 1Ω (Apply battery voltage to terminals 1 and 2)

      If the result is not as specified, replace the E.F.I. circuit opening relay assy.

      Fig 9: Measuring Resistance Between Terminals Of E.F.I. Circuit Opening Relay Assy
      G03081547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSPECT EFI RELAY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      3-5 10 k or higher
      3-5 Below 1Ω (Apply battery voltage to terminals 1 and 2)

    If the result is not as specified, replace the E.F.I. ECU relay.

    Fig 10: Measuring Resistance Between Terminals Of E.F.I. Relay
    G03081548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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