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Home >> Subaru >> 2020 >> Outback Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0172: System Too Rich Bank 1 >> General Description >> Diagnostic Method
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Diagnostic Method

Compare the diagnostic value with the threshold value, and if a condition meeting the criteria continues for 10s x 3 time(s) or more, judge that there is a fault in the fuel system.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Offset amount of main feedback compensation Less than value of Map
MAP SPECIFICATION

Warm-up increase compensation coefficient 0.000 0.100 0.200 0.300 0.400 0.416
Threshold Value 0.65 0.56 0.49 0.42 0.36 0.35

Time needed for diagnosis  : 10s x 3 time(s)

Malfunction indicator light illumination  : Illuminates when malfunction occurs in 2 continuous driving cycles.