Diagnostic Method

Judge NG when the continuous time until completing the malfunction criteria below becomes more than the time (120 seconds) needed for diagnosis. Also, judge OK when the malfunction criteria below is not completed. And then, clear the NG.

Judgment Value 

Fig 1: Threshold Value Table

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1. Time Needed for Diagnosis: 

   120 seconds

2. Malfunction Indicator Light Illumination: 

   Illuminates when malfunction occurs in 2 continuous driving cycles.

Stuck Diagnosis

If the fuel temperature which must increase along with engine idling does not increase, the engine is considered to be stuck and NG judgment is done.

• Abnormality Judgment 

  Judge NG when all of the malfunction criteria below is completed.

  Fig 1: Malfunction Criteria Table (1 Of 2)

  Courtesy of SUBARU OF AMERICA, INC.
• Normality Judgment 

  Judge OK and clear the NG when the malfunction criteria below are completed.

  Fig 2: Malfunction Criteria Table (2 Of 2)

  Courtesy of SUBARU OF AMERICA, INC.
  1. Time Needed for Diagnosis: 

     Not fixed

  2. Malfunction Indicator Light Illumination: 

     Illuminates when malfunction occurs in 2 continuous driving cycles.