Diagnostic Method

• Abnormality Judgment 

Judge NG when one of the malfunctions below is completed such as Low malfunction (1), Low malfunction (2) and High malfunction.

• Judgment Value 

Fig 1: Judgment Value Chart (1 Of 2)

Courtesy of SUBARU OF AMERICA, INC.

Estimated value of throttle opening: It is supposed from engine speed and intake manifold relative pressure.

Time Needed for Diagnosis: 

Low malfunction (1), 10 seconds

High malfunction

Low malfunction (2) 0.5 seconds x 3 times.

Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.

• Normality Judgment 

Judge OK and clear the NG when all of the malfunctions below are not completed such as Low malfunction (1), Low malfunction (2) and High malfunction.

• Judgment Value 

Fig 2: Judgment Value Chart (2 Of 2)

Courtesy of SUBARU OF AMERICA, INC.