ENGINE ASSEMBLY > INSTALLATION

for Preparation Click here



1. INSTALL ENGINE MOUNTING BRACKET FRONT LH


    A099872E01

  1. Install the mounting bracket with the 4 bolts.

    Torque:
    51 N*m{ 520 kgf*cm , 38 ft.*lbf }



2. INSTALL ENGINE MOUNTING BRACKET FRONT RH


    A099873E01

  1. Install the mounting bracket with the 4 bolts.

    Torque:
    51 N*m{ 520 kgf*cm , 38 ft.*lbf }



3. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE


A099883E01

  1. Apply a coat of engine oil to a new O-ring.

  1. Install the O-ring to the oil control valve.

  1. Install the oil control valve with the bolt.



4. INSTALL CRANKSHAFT POSITION SENSOR


    A099147E04

  1. Apply a light coat of engine oil to the O-ring of the sensor.

  1. Install the sensor with the bolt.

    Torque:
    8.5 N*m{ 87 kgf*cm , 75 in.*lbf }

  1. Install the connector to the connector bracket.

  1. Attach the harness clamp.

  1. Connect the sensor connector.



5. INSTALL CAMSHAFT POSITION SENSOR


G035088E01

  1. Apply a coat of engine oil to the O-ring.

  1. Install a new O-ring to the sensor.

  1. Install the sensor with the bolt.

    Torque:
    8.5 N*m{ 87 kgf*cm , 75 in.*lbf }



6. INSTALL ENGINE COOLANT TEMPERATURE SENSOR

  1. Using a 19 mm deep socket wrench, install a new gasket and the sensor.



7. INSTALL KNOCK SENSOR


    A099415E01

  1. Install the sensor so that it is horizontal as shown in the illustration. Then install the bolt.

    Torque:
    20 N*m{ 204 kgf*cm , 15 ft.*lbf }

    HINT:
    It is acceptable for the sensor to be tilted +- 10°.

  1. Connect the sensor connector.



8. INSTALL NO. 1 WATER BY-PASS PIPE


    G037195E01

  1. Install a new gasket and the water by-pass pipe with the 2 nuts.

    Torque:
    17.5 N*m{ 179 kgf*cm , 13 ft.*lbf }



9. INSTALL ENGINE OIL PRESSURE SWITCH


    G036762E02

  1. Apply adhesive to 2 or 3 threads of the oil pressure switch.

    Adhesive:
    Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent

  1. Install the oil pressure switch.

    Torque:
    15 N*m{ 153 kgf*cm , 11 ft.*lbf }

    NOTICE:
    Do not start the engine for at least 1 hour after installation of the switch.

  1. Connect the oil pressure switch connector.

  1. Start the engine and check for engine oil leaks.



10. INSTALL NO. 1 IDLER PULLEY


    G035185E01

  1. Install the spacer, idler pulley and pulley plate with the bolt.



11. INSTALL THERMOSTAT


    A110369E01

  1. Install a new gasket to the thermostat.

    HINT:
    When installing the thermostat to the gasket, be careful not to deform the gasket. Make sure that the thermostat is properly installed into the groove of the gasket, as shown in the illustration.

  1. Insert the thermostat into the cylinder block with the jiggle valve facing straight upward.

    HINT:
    The jiggle valve may be set within 10°of either side of the prescribed position.



12. INSTALL WATER INLET

  1. Install the inlet with the 2 nuts and bolt.

    Torque:
    20 N*m{ 204 kgf*cm , 15 ft.*lbf }

  1. Connect the connector.



13. INSTALL V-RIBBED BELT TENSIONER


    G035081E02

  1. Temporarily install the belt tensioner with the 3 bolts.

    HINT:
    Make sure the flanges of the bolts are contacting the tensioner surface.

  1. Install the tensioner by tightening the 3 bolts in the order shown in the illustration.

    Torque:
    40 N*m{ 408 kgf*cm , 30 ft.*lbf } for bolt 1
    21 N*m{ 214 kgf*cm , 15 ft.*lbf } for bolt 2
    43 N*m{ 438 kgf*cm , 32 ft.*lbf } for bolt 3



14. INSTALL COMPRESSOR MOUNTING BRACKET (w/ Air Conditioning)

NOTICE:
In order to prevent misalignment, which causes belt rattle, the 5 bolts must be tightened exactly as described in the procedures below.



    A113390E01

  1. Temporarily install the mounting bracket with the 3 bolts labeled A.

    HINT:
    Make sure the flanges of the bolts are contacting the bracket surface.

  1. Make sure there is no clearance between the cylinder block and bracket as shown in the illustration. Then install the bolt labeled B.

    Torque:
    45 N*m{ 459 kgf*cm , 33 ft.*lbf } for bolt B



    A113788E01

  1. Tighten the bolts labeled A and install the bolt labeled C.

    Torque:
    45 N*m{ 459 kgf*cm , 33 ft.*lbf } for bolt A
    24.5 N*m{ 250 kgf*cm , 18 ft.*lbf } for bolt C



15. INSTALL EXHAUST MANIFOLD


    A099195E01

  1. Install a new gasket and the exhaust manifold with the 6 nuts.

    Torque:
    36 N*m{ 367 kgf*cm , 27 ft.*lbf }



16. INSTALL EXHAUST MANIFOLD HEAT INSULATOR


    A099875E01

  1. Install the heat insulator with the 5 bolts.

    Torque:
    12 N*m{ 122 kgf*cm , 9 ft.*lbf }



17. INSTALL INTAKE MANIFOLD


    G036020E01

  1. Install a new gasket and the intake manifold with the 5 bolts and 2 nuts.

    Torque:
    25 N*m{ 255 kgf*cm , 18 ft.*lbf }

  1. Connect the crankshaft position sensor to the clamp.



18. INSTALL INJECTOR


    A099091E01

  1. Install a new insulator to the injector.

  1. Apply a light coat of grease or gasoline to a new O-ring and install it to the injector.



    A087155E01

  1. Apply a light coat of grease or gasoline on the place where the delivery pipe touches the O-ring.

  1. To install the fuel injector into the fuel delivery pipe, push the fuel injector while twisting it back and forth.

    NOTICE:
    1. Be careful not to twist the O-ring.
    2. After installing the fuel injector, check that it turns smoothly. If not, reinstall it with a new O-ring.

  1. Position the injector connector so that it faces downward.



19. INSTALL FUEL DELIVERY PIPE


    G036023E01

  1. Install the 4 spacers to the cylinder head.



    G036024E01

  1. Connect the 4 injector connectors.

  1. Install the 2 bolts and delivery pipe together with the 4 injectors.

    Torque:
    12 N*m{ 122 kgf*cm , 9 ft.*lbf }



    G035144E01

  1. Connect the 4 clamps and wire harness to the delivery pipe.

  1. Connect the vacuum hose.



20. INSTALL THROTTLE BODY


    G036423E01

  1. Install a new gasket on the intake manifold.

    HINT:
    Align the protrusion of the gasket with the groove of the intake manifold.



    A086829E01

  1. Install the throttle body with the 2 bolts and 2 nuts.

    Torque:
    9.0 N*m{ 92 kgf*cm , 80 ft.*lbf }

  1. Connect the water by-pass hose to the throttle body.

  1. Connector the throttle control motor & throttle position sensor connector.



21. INSTALL ENGINE WIRE


    G038850E02

  1. Connect the wire harness (engine ground wire) to the engine rear side with the 2 bolts so that it is within the specified range shown in the illustration.

    Torque:
    31 N*m{ 316 kgf*cm , 23 ft.*lbf }

  1. Connect the oil pressure sensor connector.

  1. Connect the noise filter connector.

  1. Connect the camshaft position sensor connector.

  1. Connect the 4 injector connectors.

  1. Connect the crankshaft position sensor connector.

  1. Connect the OCV connector.

  1. Connect the VSV for EVAP connector.

  1. Connect the throttle body connector.

  1. Connect the ECT sensor connector.

  1. Connect the knock sensor connector.

  1. Connect the wire harness to the clamps.



22. INSTALL GENERATOR


    A099681E03

  1. Install the generator with the 2 bolts.

    Torque:
    43 N*m{ 438 kgf*cm , 32 ft.*lbf }

  1. Install the generator wire with the bolt and nut.

    Torque:
    9.8 N*m{ 100 kgf*cm , 87 ft.*lbf }

  1. Connect the connector.



23. INSTALL VENTILATION PIPE

  1. Install the ventilation pipe with the bolt.

    Torque:
    18 N*m{ 184 kgf*cm , 13 ft.*lbf }



24. INSTALL SPARK PLUG


25. INSTALL IGNITION COIL

  1. Install the ignition coil with the bolt.

    Torque:
    9.0 N*m{ 92 kgf*cm , 80 in.*lbf }

  1. Connect the 4 ignition coil connectors.



26. REMOVE ENGINE FROM ENGINE STAND


27. INSTALL ENGINE ASSEMBLY


    G037192E02

  1. Attach the engine sling device and chain block to the engine hangers.

  1. Slowly lower the engine assembly into the engine compartment.



    G037190E01

  1. Install the engine mounting brackets with the 4 bolts and 4 nuts.

    Torque:
    38 N*m{ 388 kgf*cm , 28 ft.*lbf }



28. INSTALL REAR END PLATE

  1. Install the end plate with the 2 bolts.

    Torque:
    18 N*m{ 184 kgf*cm , 13 ft.*lbf }



29. INSTALL FLYWHEEL


A004869E02

HINT:
  1. The mounting bolts are tightened in 2 progressive steps.
  2. If any of the mounting bolts is broken or deformed, replace it.

  1. Apply adhesive to 2 or 3 threads of the mounting bolt end.

    Adhesive:
    Part No. 08833-00070, THREE BOND 1324 or equivalent

  1. Install the flywheel.



    A099210E02

  1. Fix the crankshaft in place with SST.

    SST
    09213-54015   (91651-60855)
    09330-00021  



    G035062E02

  1. Install and uniformly tighten the 10 mounting bolts in several passes in the order shown in the illustration.

    Torque:
    26.5 N*m{ 270 kgf*cm , 20 ft.*lbf }

    If any of the mounting bolts does not meet the torque specification, replace the mounting bolts.



    G035063E01

  1. Mark the mounting bolts with paint.



    G035062E02

  1. Retighten the mounting bolts by 90° in the numerical order shown in the illustration.

  1. Check that the painted marks are now at a 90° angle to the position.



30. INSTALL CLUTCH DISC


    C112690E01

  1. Insert SST into the clutch disc. Then insert the SST (together with the clutch disc) into the flywheel.

    SST
    09301-00110  

    NOTICE:
    Take care not to insert the clutch disc facing the wrong direction.



31. INSTALL CLUTCH COVER


    D029623E01

  1. Align the matchmarks on the clutch cover and flywheel.

  1. Tighten the 6 bolts as described below.

    1. Determine the first bolt to be tightened by choosing the bolt closest to the knock pin.

    2. Uniformly tighten the 6 bolts in diametrically opposite pairs relative to the position of the first bolt. Use the illustration as a reference.

      Torque:
      19 N*m{ 195 kgf*cm , 14 in.*lbf }

  1. Lightly move SST up and down, and right and left.

    SST
    09301-00110  

  1. Check that the disc is in the center, and then tighten the bolts.



32. INSTALL MANUAL TRANSMISSION UNIT


G039485E02

  1. Align the input shaft with the clutch disc and install the transmission to the engine.

  1. 2KD-FTV:
    Install the 5 bolts.

    Torque:
    72 N*m{ 730 kgf*cm , 53 ft.*lbf }

  1. 1TR-FE:
    Install the 7 bolts.

    Torque:
    72 N*m{ 730 kgf*cm , 53 ft.*lbf } for bolt A
    37 N*m{ 377 kgf*cm , 27 ft.*lbf } for bolt B



33. INSTALL CLUTCH RELEASE CYLINDER

  1. Install the clutch release cylinder with the 2 bolts.

    Torque:
    12 N*m{ 122 kgf*cm , 9 ft.*lbf }



34. INSTALL STARTER


    G039040E01

  1. Install the starter with the 2 bolts.

    Torque:
    37 N*m{ 377 kgf*cm , 27 ft.*lbf }

  1. Install the starter wire to terminal 30 with the nut.

    Torque:
    9.8 N*m{ 100 kgf*cm , 87 in.*lbf }

  1. Connect the starter connector.

  1. Install the clutch release cylinder (Click here).



35. INSTALL PROPELLER SHAFT WITH CENTER BEARING


C098710E01

  1. Remove SST from the extension housing.

  1. Install the propeller shaft into the extension housing.



    A098693E01

  1. Install the center support bearing bracket with the 2 plates and 2 bolts. Tighten the bolts as much as possible by hand.



    F050137E01

  1. Align the matchmarks on the propeller shaft flange and differential flange.

  1. Install the propeller shaft with the 4 bolts, 4 washers and 4 nuts.

    Torque:
    88 N*m{ 897 kgf*cm , 65 ft.*lbf }



    A098689E01

  1. Unload the vehicle. The center line of the center bearing and center bearing housing (see illustration) must be adjusted to within 0 +- 1 mm (0 +- 0.04 in.) of each other. Measure the difference along the vehicle front/rear axis.

  1. Tighten the 2 bolts of the center support bearing bracket.

    Torque:
    36 N*m{ 360 kgf*cm , 26 ft.*lbf }



36. INSTALL FRONT EXHAUST PIPE


    A107610

  1. Using a vernier caliper, measure the free length of the compression spring.

    Minimum length:
    40 mm (1.57 in.)

    If the length is less than the minimum replace the compression spring.

  1. Install the front pipe to the pipe support.



    A099436E02

  1. Install a new gasket to the outlet pipe.

    HINT:
    Using a plastic-faced hammer, uniformly strike the gasket so that the gasket and outlet pipe are properly fit.

    NOTICE:
    1. Be careful with the installation direction of the gasket.
    2. Do not reuse the gasket.
    3. To ensure a proper seal, do not use the front pipe to force the gasket onto the outlet pipe.

  1. Install the front pipe with the 2 compression springs and 2 bolts. Alternately tighten the bolts in several passes.

    Torque:
    43 N*m{ 438 kgf*cm , 32 ft.*lbf }



37. INSTALL HOOD


38. INSTALL COOLER COMPRESSOR (w/ Air Conditioning)


    A099200E01

  1. Loosely install the bolt labeled A to install the compressor.

  1. Install the compressor completely by tightening the 4 bolts in the order shown in the illustration.

    Torque:
    25 N*m{ 255 kgf*cm , 18 ft.*lbf }

    NOTICE:
    In order to prevent misalignment, which causes belt rattle, tightening of the bolts must be performed in the order shown.



    A099198E01

  1. Connect the suction hose with the 2 bolts.

    Torque:
    5.4 N*m{ 55 kgf*cm , 48 in.*lbf }

  1. Connect the compressor connector.



39. INSTALL OIL DIPSTICK GUIDE

  1. Install a new O-ring and the guide with the bolt.

    Torque:
    8.0 N*m{ 82 kgf*cm , 15 in.*lbf }



40. INSTALL OIL DIPSTICK


41. INSTALL VANE PUMP


    A099199E01

  1. Install the vane pump with the 2 bolts.

    Torque:
    25 N*m{ 255 kgf*cm , 18 ft.*lbf }

  1. Connect the PS oil pressure switch connector.



42. CONNECT ENGINE WIRE


    G038831E01

  1. Connect the 2 engine room junction block connectors and connect the wire clamp.

  1. Connect the cable to the engine room junction block with the nut.

    Torque:
    13 N*m{ 133 kgf*cm , 10 ft.*lbf }

  1. Install the engine room relay block cover (side).

  1. Install the engine room relay block cover (upper).

  1. Connect the ground wire with the bolt and clamp.

    Torque:
    31 N*m{ 316 kgf*cm , 23 ft.*lbf }

  1. Connect the ground wire to the frame with the bolt so that it is within the range shown in the illustration.

    Torque:
    13 N*m{ 133 kgf*cm , 10 ft.*lbf }



    A112963E02

  1. Push the engine wire through the dash panel into the cabin. The wire should be within the range shown in the illustration.

  1. Connect the heated oxygen sensor connector and clamp with the bolt.

    Torque:
    13 N*m{ 133 kgf*cm , 10 ft.*lbf }



    A111959

  1. Connect the ECM connectors.

    1. Connect the 4 ECM connectors.

    2. Install the glove compartment door.

  1. Connect the wire clamp to the engine mounting bracket front LH with the bolt.



43. CONNECT FUEL HOSE


    G039233E04

  1. Connect the No. 1 fuel hose to the pulsation damper.



      A071366E09

    1. Check that there is no damage or contamination in the connected part of the pipe.

    2. Align the axis of the connector with the axis of the pipe. Push the pipe into the connector until the connector makes a "click" sound. If the connection is tight, apply a small amount of fresh engine oil on the tip of the pipe.



      3. A071366E10

    3. After having finished the connection, try to pull apart the pipe and the connector and confirm that they are securely connected.



      4. A099425E05

    4. Attach the lock claws to the connector by pushing down on the cover, as shown in the illustration.

  1. Connect the No. 2 fuel hose to the pressure regulator.



44. CONNECT HOSE


G039232E01

  1. Connect the vacuum hose (for brake master cylinder).

  1. Connect the hose to the VSV for EVAP.



45. INSTALL RADIATOR


    A099640E02

  1. Install the radiator with the 4 bolts.

    Torque:
    12 N*m{ 122 kgf*cm , 9 ft.*lbf }



    A110375

  1. Attach the 4 clamps of the 2 airbag sensors from harnesses to the radiator.

  1. Connect the 2 airbag sensor front connectors.



46. INSTALL FAN PULLEY


47. INSTALL FAN SHROUD


A099679E03

  1. Install the fan pulley to the water pump.

  1. Place the shroud together with the fluid coupling fan between the radiator and engine.

    NOTICE:
    Be careful not to damage the radiator core.

  1. Install the coupling fan to the water pump with the 4 nuts. Tighten the nuts as much as possible by hand.

  1. Attach the shroud's claws to the radiator as shown in the illustration A.

  1. Install the shroud with the 2 bolts.

    Torque:
    5.0 N*m{ 51 kgf*cm , 44 in.*lbf }

  1. Connect the reservoir hose to the radiator tank upper.

  1. Install the drive belt (Click here).

  1. Tighten the 4 nuts of the fluid coupling fan.

    Torque:
    25 N*m{ 255 kgf*cm , 18 ft.*lbf }



48. INSTALL DRIVE BELT


    A097752E02

  1. Install the drive belt to the pulleys except the drive belt tensioner pulley.

  1. Use the hexagon-shaped part indicated by the arrow in the illustration to move the tensioner pulley downward and then install the drive belt to the tensioner pulley.

    NOTICE:
    1. The backside of the drive belt should face the tensioner pulley.
    2. Check that the drive belt is properly set to each pulley.



    G038479E01

  1. After a new belt has been installed, check that the tensioner indicator mark is within range A shown in the illustration.



49. CONNECT RADIATOR OUTLET HOSE


50. CONNECT RADIATOR INLET HOSE


51. INSTALL RADIATOR GRILLE


B108604E01

  1. Push the radiator grille in the direction indicated by the arrow in the illustration. Attach the 5 claws to install the radiator grille.

  1. Install the 2 screws and 2 clips.



52. INSTALL INTAKE AIR CONNECTOR AND AIR CLEANER ASSEMBLY


    A099871E01

  1. Install the air cleaner and intake air connector assembly with the 4 bolts, and tighten the hose clamp.

    Torque:
    14 N*m{ 143 kgf*cm , 10 ft.*lbf } for air cleaner
    8.0 N*m{ 82 kgf*cm , 71 in.*lbf } for intake air connector
    5.0 N*m{ 51 kgf*cm , 44 in.*lbf } for hose clamp

  1. Connect the MAF meter connector and wire harness clamps.

  1. Connect the No. 2 ventilation hose.

  1. Connect the vacuum hose.



53. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL


54. ADD ENGINE OIL

  1. Clean and install the oil drain plug with a new gasket.

    Torque:
    37.5 N*m{ 382 kgf*cm , 28 ft.*lbf }

  1. Add fresh engine oil.

    Standard capacity:
    Item
    		Capacity
    Drain and refill with oil filter change
    		5.6 liters (5.9 US qts, 4.9 lmp. qts)
    Drain and refill without oil filter change
    		5.3 liters (5.6 US qts, 4.6 lmp. qts)
    Dry fill
    		6.3 liters (6.7 US qts, 5.5 lmp. qts)

  1. Install the oil filler cap.



55. ADD ENGINE COOLANT

  1. Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

    Torque:
    24.5 N*m{ 250 kgf*cm , 18 ft.*lbf } for cylinder block drain cock plug

    Standard capacity:
    7.0 liters (7.4 US qts, 6.2 lmp. qts)

  1. Fill the radiator with TOYOTA Super Long Life Coolant (SLLC) to the F line.

    HINT:
    1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
    2. Please contact your TOYOTA dealer for further details.

      NOTICE:
      Never use water as a substitute for engine coolant.

  1. Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
    If the coolant level drops below the F line, add TOYOTA SLLC to the F line.

  1. Install the radiator cap.

  1. Bleed air from the cooling system.

    1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

    2. Maintain the engine speed at 2,000 to 2,500 rpm.

    3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

      CAUTION:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      2. Be careful as the radiator hoses are hot.
      3. Keep your hands away from the radiator fan.

  1. Stop the engine and wait until the coolant cools down to ambient temperature.

    CAUTION:
    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.



    A112081E01

  1. Check the coolant level in the radiator reservoir.
    If the coolant level is low, add SLLC to the reservoir F line.



56. CHECK FOR FUEL LEAKS

  1. Connect the intelligent tester to the DLC3.

    1. Turn the ignition switch ON.

      NOTICE:
      Do not start the engine.

    2. Push the intelligent tester main switch ON.

    3. Select the Active Test and enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

  1. Check for fuel leaks.

    1. Check that there are no fuel leaks after performing maintenance anywhere on the fuel system.



57. CHECK FOR OIL LEAKS

  1. Start the engine, and check that there are no oil leaks after performing maintenance.



58. CHECK FOR COOLANT LEAKS

CAUTION:
Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.



    A099675E01

  1. Fill the radiator with coolant and attach a radiator cap tester.

  1. Warm up the engine.

  1. Using the radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm2, 17.1 psi), and check that the pressure does not drop.
    If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the cylinder block and head.



59. PERFORM INITIALIZATION

  1. Perform initialization (Click here).

    NOTICE:
    Certain systems need to be initialized after disconnecting the cable from the negative (-) battery terminal.



60. INSTALL NO. 1 ENGINE UNDER COVER

  1. Install the No. 1 under cover with the 4 bolts.

    Torque:
    28 N*m{ 286 kgf*cm , 21 ft.*lbf }



61. CHECK IDLE SPEED AND IGNITION TIMING

  1. Warm up and stop the engine.

    NOTICE:
    A warmed up engine should have an engine coolant temperature of over 80°C (176°F), have an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.



  1. Check the idle speed control system.



      G039758E01

    1. Using SST, connect terminals TC and CG of the DLC3.

      SST
      09843-18040  

    2. Start the engine at idle.

      NOTICE:
      1. Confirm the terminal numbers before connecting them. Connection with a wrong terminal can damage the engine.
      2. Turn off all electrical systems before connecting the terminals.
      3. When checking ISC function, the transmission should be in the neutral position.



      3. A099876E01

    3. After connecting terminals (TC and CG), check that the engine speed changes to approximately 1,000 to 1,500 rpm for 5 seconds, and then returns to idle speed.
      If the result is not as specified, check the throttle body, DTC (Click here) and wire harness.



62. CHECK CO/HC


G037188E01

  1. Start and warm up the engine.

  1. Run the engine at 2,500 rpm for approximately 180 seconds and idle the engine.

  1. Insert CO/HC meter testing probe at least 40 cm (1.3 ft.) into the tailpipe.

  1. Check CO/HC concentration at idle.

    Idle CO concentration:
    0 to 0.5%

    Idle HC concentration:
    Applicable local regulation

  1. If the CO/HC concentration is not as specified, perform troubleshooting in the order given below.

    1. Check the heated oxygen sensor operation (Click here).

    2. See the table below for possible causes, and then inspect and repair the applicable causes if necessary.

      CO
      		HC
      		Problems
      		Causes
      Normal
      		High
      		Rough idle
      1. Faulty ignitions:
        1. Incorrect timing
        2. Plugs are contaminated, shorted or gaps are defective
      2. Incorrect valve clearance
      3. Leaks in intake and exhaust valves
      4. Leaks in cylinders
      Low
      		High
      		Rough idle
      (Fluctuating HC reading)
      1. Vacuum leaks:
        1. PCV hoses
        2. Intake manifold
        3. Throttle body
        4. Brake booster line
      2. Lean mixture causing misfire
      High
      		High
      		Rough idle
      (Black smoke from exhaust)
      1. Restricted air filter
      2. Plugged PCV valve
      3. Faulty SFI system:
        1. Faulty pressure regulator
        2. Defective ECT sensor
        3. Defective Mass Air Flow (MAF) meter
        4. Faulty ECM
        5. Faulty injectors
        6. Faulty throttle position sensor



63. CHECK FUNCTION OF THROTTLE BODY


    A111693

  1. Check the throttle control motor operating sound.

    1. Turn the ignition switch ON.

    2. When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor.
      If friction noise is heard, replace the throttle body.



    A099015E01

  1. Check the throttle position sensor.

    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch ON.

    3. Under Current Data, check that the throttle valve opening percentage (Throttle Pos) is within the standard.

      Standard throttle valve opening percentage:
      60% or more

      NOTICE:
      When checking the standard throttle valve opening percentage, the shift lever should be in the N position.

      If the percentage is less than 60%, replace the throttle body.