P0160 error code is an OBD-II Code that refers to 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2). It is related to bank 2 sensor 2 oxygen sensor circuit activity. Read to know more.
What is a P0160 error code?
Oxygen sensors (O2 sensors) maintain tabs on the amount of oxygen (O2) in the exhaust stream, which aids your car’s engine to operate efficiently while also reducing pollutants. It’s also critical in determining the root cause of other system and component malfunctions.
The powertrain control module (PCM) may be unable to test other systems if one or more oxygen sensors are destroyed. Code P0160 may also be recorded by onboard diagnostics.
When the bank 2 sensor 2 oxygen sensor circuit shows no activity, P0160 is set. This is the cylinder number on the other side of the engine from cylinder one. Typically, Sensor 2 is located after the catalytic converter in order to check its efficiency.
Code P0160 indicates a problem with bank 2 sensor 2’s oxygen sensor circuit, as determined by the powertrain control module. An issue with the vehicle’s emissions system will be indicated by the Check Engine Light.
P0160 error code: Causes
The common sources of this error code are:
- Problems with the wiring.
- Damage to the connections.
- There are broken cables.
- Harness that had melted.
- The post-catalytic O2 sensor may have holes in it. The PCM for the Oxygen Sensor in Bank 2, Position 2 is defective (rare).
- Faulty PCM.
P0160 error code: Symptoms
A P0160 code has the following symptoms:
- Indicated by an illuminated Engine Warning Light
- The exhaust pipe is smoking.
- Increasingly poor performance.
- Fuel consumption is higher than normal due to a lack of throttle response.
- The engine working on Limp Mode.
P0160 error code: Diagnosis
A technician would use the following steps to diagnose a P0160 code:
- Scan the ECM for errors and check the freeze frame data for evidence of a problem.
- Check the wiring and connectors for signs of wear and tear.
- The oxygen sensor’s resistance should be checked.
- Perform a voltage test on the sensor.
- Perform a leak test for combustion.
- Test the PCM to ensure it is working properly.
Common mistakes during diagnosis of a P0160 error code
When diagnosing a P0160 code, the following are some of the most common errors made by technicians:
- Not checking for damage to the wiring and connectors in their entirety.
- Skipping to check the oxygen sensor’s resistance.
- Not checking the sensor’s output voltage for a specific voltage range.
- Performing a combustion leak test without first verifying that the PCM is working properly.
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How serious is P0160?
The P0160 error code has a medium level of severity, but it should be fixed as soon as possible to avoid more costly repairs.
How to fix P0160
The following can be the possible fixes to P0160:
- Taking care of any broken or malfunctioning wiring or connectors.
- Removing and reinstalling the sensor.
- Changing the PCM (rare).
To fix the P0160 code on your own, make sure you have the right tools and knowledge about cars before you begin the process. Otherwise, you run the risk of making errors that worsen the situation. Instead of doing the repairs yourself, it’s best to hire a licensed mechanic who can do the job correctly.
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