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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (Except For STI) (3 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P2097: Post Catalyst Fuel Trim System Too Rich Bank 1 >> Diagnostic Method

Diagnostic Method

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Sub feedback learning value ≥ 0.027

Time needed for diagnosis:  1 second

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

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