P0157 - OBD Trouble Code

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The fault code P0157 can be defined as O2 sensor low voltage bank 2 sensor 2. This fault code refers to an issue in the bank 2 sensor 2 of the oxygen sensor, which is situated near the backside of the exhaust, behind the catalytic converter. This code would start triggering up when the powertrain control module detects the voltage signal of the oxygen sensor remains low for an extended period of time.

This fault code refers to the O2 sensor behind the catalytic converter, at the backside of the exhaust. The main role of this sensor is to regulate the amount of oxygen that gets inside the catalytic converter. There is too much oxygen in the exhaust when there is lean mixture of O2 and gas. On the other hand, a rich mixture of oxygen and gas would mean that there is not enough amount of oxygen in the exhaust.

What causes this problem with the 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)?

There can be some faults in the fuel pressure oxygen sensor (Bank 2 Sensor 2)

• The fuel pressure might be insufficient
• The oxygen sensor reading might turn out to be false as a result there can be some holes in the exhaust
• The rear oxygen sensor connector can get corroded
• There can be fuel or coolant leakage on the rear oxygen sensor
• The issue of broken, shorted or exposed wires
• The engine coolant temperature sensor can start malfunctioning
• Defective power control module
• The power control module should be updated

1. Oxygen Sensor - Faulty Oxygen Sensor can be the reason why P0157 code is flashing. Visit us to purchase top notch Oxygen Sensor online.
2. Exhaust Parts - It is an important auto part which needs full care. Faulty Exhaust Parts can be a reason behind the flashing up of P0157 code.
3. Catalytic Converter - OBD Code P0157 can appear because of faulty Catalytic Converter.
4. Powertrain Control Module - There can be some issues with the PCM due to which you may see P0157 code appearing over and over again. Visit us to buy best quality PCM online.
5. Coolant Temperature Sensor - Are you facing some faults in your Coolant Temperature Sensor? Don’t worry and get them replaced or else P0157 code can turn up.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P0157 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• There can be an overall increase in fuel consumption
• Check engine light can start turning on
• The car engine may start running roughly or idles poorly
• In some rare cases, there will be no symptoms noticed by the driver

Learn the ways with which you can correct this trouble code:

• The rear oxygen sensor should be replaced
• Repairing of broken circuitry or shorted wires going to the oxygen sensor
• If you find out that the fuel pressure is abnormal, repairing the cause of the abnormality
• The engine coolant temperature sensor should be repaired if it is faulty
• The power control module should be replaced having it updated, if necessary

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of throttle position sensor, exhaust clamps, shift solenoid and a lot more. We are sure that now all your issues would be resolved.

• Use a scanner to observe the switching time of an Oxygen Sensor, though this data is only an approximation created by the powertrain control module for diagnostic purposes. In order for this code to set, the Oxygen Sensor requires malfunctions on two different vehicle drive cycles, however, if the problem is severe enough, the code can set in less than fifteen minutes on an initial test drive, even after the clearing of all codes. We can also say that the code setting criteria would vary from vehicle to vehicle.
• When the trouble code P0157 is set, make sure that you record the freeze frame data in fine detail. The next step is to duplicate the code setting conditions on a test drive, paying particular attention to load, MPH, and RPM. The best tool to use on this test drive is a data streaming scan tool that has dedicated live factory data. Make sure that you carefully verify the code conditions before advancing to the next set of tests

 Common Mistakes When Diagnosing The P0157 Code

• Make sure that you do not replace the oxygen sensor without confirming it is bad
• One another mistake can be not inspecting the condition of the oxygen sensor wires
• Not being able to inspect the condition of the exhaust