DTC P0133 - O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

DTC DESCRIPTION P0133 - O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1)

Description: The PCM monitors oxygen sensor response time by commanding a calibrated fuel control routine. This routine sets the air fuel ratio to a calibrated limit to produce a predictable oxygen sensor signal amplitude. This DTC sets when the oxygen sensor signal does not reach the predicted amplitude within a predetermined response time.
Possible Causes: Exhaust leaks Incorrect fueling Mass airflow (MAF) sensor (if equipped) Intake air leaks Contaminated universal heated oxygen sensor bank 1, sensor 1 (HO2S11) (if equipped) Contaminated HO2S11 (if equipped) Deteriorating universal HO2S11 (if equipped) Deteriorating HO2S11 (if equipped)
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
EcoSport 1.5L, KA	GO to PINPOINT TEST DW .
All others	GO to PINPOINT TEST DZ .