ES300 1992-1997

Inspection

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Specific to:

Lexus ES300 1994-1999

  1. Inspect ignition timing:
    1. Using SST (SST 09843-18020), connect terminals TE1 and E1 of the data link connector 1.

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      Fig. Using SST (SST 09843-18020), connect terminals TE1 and E1 of the data link connector 1-1994-96 models



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      Fig. Using SST (SST 09843-18020), connect terminals TE1 and E1 of the data link connector 1-1997-99 models

    2.  
    3. Using a timing light, check the ignition timing. Ignition timing: 8-12° BTDC @ idle (Transmission in neutral position)

      Click image to see an enlarged view

      Fig. Using a timing light, check the ignition timing-1994-96 models



      Click image to see an enlarged view

      Fig. Using a timing light, check the ignition timing-1997-99 models

    4.  
    5. If the ignition timing is not as specified, check that following conditions are normal:

      Throttle valve fully closed
       
      Continuity between terminals IDL1 and E2 of the throttle position sensor.
       
      Valve timing
       

    6.  
    7. Remove the SST from the data link connector 1.
    8.  

  2.  
  3. Further check ignition timing. Ignition timing:

    1994-95 models: 7-17° BTDC @ idle (Transmission in neutral position) (The timing mark moves in a range between 7° and 17°)
     
    1996-98 models: 7-24° BTDC @ idle (Transmission in neutral position) (The timing mark moves in a range between 7° and 24°)
     
    1999 models: 10-25° BTDC @ idle (Transmission in neutral position) (The timing mark moves in a range between 10° and 25°)
     

  4.  

 
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