P0101 and P0161 are diagnostic trouble codes (DTCs) used in automotive diagnostics. P0101 refers to a problem with the Mass Air Flow (MAF) sensor, indicating a circuit range/performance issue, while P0161 pertains to the oxygen sensor circuit, specifically the heater circuit for the sensor in Bank 2. "PD" typically stands for "powertrain diagnostic" and may refer to the broader category of codes related to engine and transmission performance.
Trouble code P0101 means:Mass or volume circuit range performance problem
Trouble code P0101 means:Mass or volume circuit range performance problem
Trouble code P0101 means:Mass or volume circuit range performance problem
Trouble code P0101 means: Mass or Volume Air Flow Circuit Range/Performance
Trouble code P0101 means: MAF Sensor Signal Range/Performance
Trouble code P0101 means:Mass or volume circuit range performance problem
there is no activity on sensor # 2
PD
O2 sensor
Trouble code P0101 means: MAF Sensor Signal Range/Performance
Trouble code P0101 means:Mass or volume circuit range performance problem
hi! it's the downstream oxygen sensor located right after the catalytic converter,,