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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2) >> Enable Condition

Enable Condition

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Rich → lean diagnosis response

ENABLE CONDITION REFERENCE CHART

Secondary Parameters Enable Conditions
Battery voltage ≥ 10.9 V
A/F main feedback control condition Completed
Deceleration fuel cut time of 5000 ms or more (intermediate)
Deceleration fuel cut time of 5000 ms or more (wide)
Experienced
After fuel cut ≥ 2000 ms (Intermediate)
≥ 2000 ms (Wide)
Estimated temperature of the rear oxygen sensor element ≥ 450 °C (842°F) (Intermediate)
≥ 450 °C (842°F) (Wide)
Number of deceleration fuel cut ≥ 1 time(s)


ENABLE CONDITION REFERENCE CHART

Secondary Parameters Enable Conditions
Battery voltage ≥ 10.9 V
A/F main feedback control condition Completed
Deceleration fuel cut time is 6000 ms or more. Experienced
After fuel cut ≥ 2000 ms
Number of deceleration fuel cut ≥ 1 time(s)