What causes P0161 code?
Code P0161 occurs when the powertrain control module tests the downstream heated oxygen sensor’s heater circuit on Bank 2 and detects a short in the circuit or excessive resistance in the heater circuit.
What is a P0161 engine code?
What the P0161 code means. This code means that the bank 2 sensor 2 oxygen sensor is not warming up properly due a problem in the oxygen sensor heater circuit. Vehicle emissions could be increased due to this problem.
What is code po161 mean?
Oxygen Sensor Heater Circuit Malfunction
OBD-II Code P0161 is defined as a Oxygen Sensor Heater Circuit Malfunction (Bank 2, Sensor 2) The rear Oxygen Sensor is located in the exhaust system behind the catalytic converter(s).
How do I fix code P0157?
What repairs can fix the P0157 code?
- Replacing the rear oxygen sensor.
- Repairing of broken circuitry or shorted wires going to the oxygen sensor.
- If the fuel pressure is abnormal, repairing the cause of the abnormality.
- Repairing the engine coolant temperature sensor if it is faulty.
What does the p0161 code on a car mean?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. What does this mean? The cost to diagnose the P0161 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
When does the p0161 code set on ho2s?
When the HO2S voltage goes above or below the bias range threshold, the PCM determines how much time it took. If the PCM detects that the process took too much time for the HO2S to enter into normal operating range, the P0161 code will set.
Can a faulty oxygen sensor trigger a p0141 code?
If your vehicle only has four cylinders, it will only have one bank and, typically, one downstream sensor, so it can’t trigger this code. Instead, a faulty downstream heated oxygen sensor will be set as P0141 or Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2).