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Home >> Ford >> 2020 >> Fusion Titanium Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (Engine Controls - Powertrain DTC Descriptions (Except Diesel & Hybrid) - DTC P0001 - P0238) >> DTC P013B - O2 Sensor Slow Response - Lean To Rich (Bank 1 Sensor 2)

DTC P013B - O2 Sensor Slow Response - Lean To Rich (Bank 1 Sensor 2)

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DTC DESCRIPTION P013B - O2 SENSOR SLOW RESPONSE AND LEAN TO RICH (BANK 1 SENSOR 2)

Description:  During a deceleration fuel shut-off (DFSO) event, the PCM monitors how quickly the heated oxygen sensor bank 1, sensor 2 (HO2S12) switches from lean to rich. The measured rate of the lean to rich switch is compared to a calibrated fault threshold value. The measured rate of the lean to rich switch is compared to a calibrated fault threshold value. This DTC sets when the measured value is slower than the threshold value.
Possible Causes: 
  • Exhaust leaks before or near the HO2S12
  • Damaged HO2S12
Diagnostic Aids:  Check for leaks in the exhaust system.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DW .