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Home >> Toyota >> 2007 >> Camry Solara SLE, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Ignition System (3MZ-FE) >> Ignition System >> On-Vehicle Inspection

On-Vehicle Inspection

NOTE: In the following section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C (14°F) to 50°C (122°F). "Hot" means approximately 50°C (122°F) to 100°C (212°F).
  1. INSPECT IGNITION COIL ASSEMBLY (WITH IGNITER) AND PERFORM SPARK TEST 
    1. Check for DTCs.
      NOTE: If a DTC is present, perform a troubleshooting in accordance with the procedure for that DTC.
    2. Check if sparks occur.
      1. Remove the V-bank cover (See INSTALLATION ).
      2. Remove the intake air surge tank (See COMPONENTS ).
      3. Remove the ignition coils.
      4. Using a 16 mm plug wrench, remove the spark plugs.
      5. Install the spark plugs to each ignition coil and connect the ignition coil connectors.
      6. Disconnect the 6 injector connectors.
      7. Ground the spark plugs.
      8. Check if sparks occur at each spark plug while the engine is being cranked.
        NOTE: Do not crank the engine for more than 2 seconds.

        HINT:

        If sparks do not occur, do the following test (See procedure "A"):

      9. Using a 16 mm plug wrench, install the spark plugs.

        Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf) 

      10. Install the ignition coils.

        Torque: 8 N*m (82 kgf*cm, 71 in.*lbf) 

      11. Install the intake air surge tank (See INSTALLATION ).
      12. Install the V-bank cover (See INSPECTION ).
    3. Spark test (Procedure "A")
      1. Check if wire harness side connector of ignition coil (with igniter) is secure.

        Result: 

        RESULT REFERENCE

        Result Proceed to
        NG Connect securely.
        OK Go to next step.
      2. Perform spark test with a different ignition coil (with igniter).
        1. Replace current ignition coil (with igniter) with a different functioning ignition coil (with igniter).
        2. Perform spark test again.

          Result: 

          RESULT REFERENCE

          Result Proceed to
          OK Replace faulty ignition coil (with igniter).
          NG Go to next step.
      3. Check power supply to ignition coil (with igniter).
        1. Turn the ignition switch ON.
        2. Check that there is battery voltage at ignition coil positive (+) terminal.

          Result: 

          POWER SUPPLY TO IGNITION COIL (WITH IGNITER)

          Result Proceed to
          NG Check wiring between ignition switch to ignition coil (with igniter).
          OK Go to next step.
      4. Check resistance of VVT sensor (See REMOVAL ).

        Standard resistance 

        STANDARD RESISTANCE SPECIFICATION

        Temperature Specified condition
        Cold 835 to 1,400 Ω
        Hot 1,060 to 1,645 Ω

        Result: 

        RESISTANCE OF VVT SENSOR

        Result Proceed to
        NG Replace VVT sensor.
        OK Go to next step.
      5. Check resistance of crankshaft position sensor (See REMOVAL  ).

        Standard resistance 

        STANDARD RESISTANCE SPECIFICATION

        Temperature Specified condition
        Cold 1,630 to 2,740 Ω
        Hot 2,065 to 3,225 Ω

        Result 

        CRANKSHAFT POSITION SENSOR

        Result Proceed to
        NG Replace crankshaft position sensor.
        OK Go to next step.
      6. Check IGT signal from ECM.

        Result: 

        IGT SIGNAL FROM ECM

        Result Proceed to
        NG Check ECM (See DESCRIPTION ).
        OK Repair wiring between ignition coil and ECM.
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