Subaru 2009 IMPREZA Service Manual page 793

Diagnostic Trouble Code (DTC) Detecting Criteria
8. DIAGNOSTIC METHOD
• Abnormality Judgement
Judge as NG when the following conditions are established.
Judgement Value
Malfunction Criteria
Accumulated amount of intake air
Fuel temperature difference between
Max. and Min.
Time Needed for Diagnosis: Less than 1 second
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the following conditions are established.
Judgement Value
Malfunction Criteria
Fuel temperature difference between
Max. and Min.
Time Needed for Diagnosis: Less than 1 second
Threshold Value
551043 g (19435.29 oz)
< 2 °C (35.6 °F)
Threshold Value
2 °C (35.6 °F)
GD(H4SO)-69
GENERAL DESCRIPTION