Error Code P0131: What It Means & What To Do?
OBD Code P0131 - O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
The
fault code P0131 can be described as O2 sensor circuit low voltage bank 1
sensor 1. This code would indicate that there are some issues in the wiring
like corrosion, breaks and sometimes even separation. The oxygen sensor could
turn out to be non-functioning or there can also be some bad connection to the
ECU, or there are chances that the power source is not supplying enough amount
of voltage to the sensor.
Learn More About OBD Error Code P0131
Are you willing
to learn something more about this fault code? The O2 sensor is positioned in
the exhaust system so that it is able to monitor oxygen levels in the exhaust
gases that exit the engine. This gauge’s fuel burning efficiency as well as
checks that the car engine is maintaining the proper air fuel ratio for a clean
burn. This would then help the ECU to determine if the mixture of the fuel is
rich or lean. Here rich would mean less oxygen and on the other hand lean would
be more oxygen.
What causes this problem with the O2 Sensor Circuit Low
Voltage (Bank 1 Sensor 1)?
- There
can be some failure in the oxygen sensor
- The
wiring might be damaged or unplugged
- The
reading of the coolant temperature sensor can be improper
- There can be a failure in the heater circuit for oxygen sensor
- Generally,
the sensor might fail due to age and wear
Replace/Repair These Parts To Fix OBD Code P0131
- Oxygen Sensor - P0131 error
code also relates to problems with the Oxygen Sensor. Find all the Oxygen
Sensor related parts with us.
- Mass Air Flow
Sensor - OBD Error Code P0131 can simply be
due to faulty Mass Air Flow Sensor. Replace old and damage components now!
- Manifold Absolute
Pressure Sensor - If there is any fault detected in the
Manifold Absolute Pressure Sensor, then it would flash OBD Code P0131. Replace
faulty Manifold Absolute Pressure Sensor now!
- Exhaust Parts - Faulty/damaged
Exhaust parts will reduce the
performance of the vehicle. Thus, it is important to replace them immediately.
- Powertrain Control
Module - Problematic Powertrain Control Module
would be a reason why P0131 fault code is appearing again and again. Replace
faulty Powertrain Control Module immediately.
- Engine Control Module - Is your Mass Air Flow Sensor perfectly correct, but still seeing P0131 code? Then there is definitely some issue with the Engine Control Module.
- Fuel Pump - Are you facing
some issues in your Fuel Pump? Don’t worry as we have solutions for all your
problems!
Symptoms Of OBD Error Code P0131
We at Parts
Avatar Canada care for our customers, and that’s why we will help you to
diagnose P0131 code by listing out some major symptoms. They are mentioned
below as follows:
Common Symptoms
- Check
engine light might start illuminating
- Vehicle
may idle or start running roughly
- There
can be a decrease in fuel economy
- Engine
might start dying
- Black smoke can start coming out of the exhaust and bad smelling exhaust
- There
can be some unusual cases where no adverse conditions can be noticed by the
driver
How To Correct P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
It is very
important to fix the fault code P0131. So here are some ways with which you can
correct this issue:
- First
of all you have to confirm that P0131 is present. This can be done using a scan
tool
- You
must clear the fault code and complete a road test to ensure that P0131 comes
back
- Perform
a visual inspection of the bank 1 sensor 1 wiring replacing or repairing any
wiring that is found to be faulty
- After
that you should check voltage and resistance of bank 1 sensor 1
- If
you find it necessary, then you can replace the oxygen sensor bank 1 sensor 1
with a new sensor
However, if you face any issue then we have stocked a wide range of best priced catalytic converter, fuel pump, exhaust manifold and more to help you out in fixing your car.
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Easy Diagnosis Of Engine Error OBD Code P0131
- The
first and the foremost thing which a mechanic should do is to plug in a OBD2
scanner into the DLC connector, which is generally located under the dash on
the driver’s side, to read and confirm any codes present. With any code there
will be an associated freeze frame data which tells us under what conditions
such as engine speed, driving speed, run time, engine temperature that the code
was set at so that we are able to recreate this in our test drive
- Once
you find out that P0131 fault code is confirmed, then a qualified mechanic will
clear the code and then make sure that you take your vehicle out on a test
drive while observing the vehicles data street which will show the oxygen
sensor voltage and resistance. If you find out that the code comes back on,
excessive resistance is shown, or out of range voltage is present the technician
has confirmed there is a fault in the oxygen sensor circuit
- You
should visit a qualified technician who can efficiently perform a visual
inspection to insure the integrity of the oxygen sensor wiring
- If
the wiring is found to be perfectly okay the mechanic will check the sensor
voltage and resistance. The voltage should be below 1 volt and resistance below
manufacture specifications for each vehicle.
Common Mistakes When Diagnosing The P0131 Code
- The most
common mistake can be not confirming that a fault is present in the oxygen
sensor circuit by clearing the code and performing a test drive
- One another common mistake which can occur is that engine misfires can be caused by an oxygen sensor failure and alternatively engine misfires can cause the vehicle’s oxygen sensors to read improperly
- If
the coolant temperature sensor is faulty, then it can lead to misdiagnosis as well