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Home >> Subaru >> 2019 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Control System (Diagnostics) (Except For STI) (4 Of 4)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2195: A/F/O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 >> Diagnostic Method

Diagnostic Method

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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
λ value > 1.15
Output voltage value of rear oxygen sensor ≥ 0.55 V

Time needed for diagnosis:  10000 ms

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