Diagnostic Method

Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria below becomes more than 120 seconds.
Judgment Value

Fig 1: Threshold Valve Table (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.

Time Needed for Diagnosis: 120 seconds

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Normality Judgment
Judge OK when the malfunction criteria below are completed.
Judgment Value

Fig 2: Threshold Valve Table (2 Of 2)
Courtesy of SUBARU OF AMERICA, INC.
Stuck Diagnosis
If the fuel temperature which might rise along with the engine idling (the cumulative amount of intake air after engine starting is large) does not increase, the engine is considered to be stuck and make an NG judgment.

Abnormality Judgment
Judge NG when the malfunction criteria below are completed.
Judgment Value

Fig 1: Threshold Valve Table (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.

Time Needed for Diagnosis: To be determined.

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Normality Judgment
Judge OK when the malfunction criteria below are completed.
Judgment Value

Fig 2: Threshold Valve Table (2 Of 2)
Courtesy of SUBARU OF AMERICA, INC.