How do I know if I need to replace my O2 sensor?

Here are some of the most common signs that your oxygen sensor is bad.

A Glowing Check Engine Light. The bright orange Check Engine light in your dashboard will usually glow if you have a bad oxygen sensor.
Bad Gas Mileage.
An Engine That Sounds Rough.
An Emissions Test Failure.
An Older Vehicle.

When is the p0137 code detected in an engine?

When is the P0137 code detected? The P0137 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively low for an extended period of time. The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank.

When is the p0137 sensor circuit low voltage bank 1 detected?

Replacing the rear O2 Sensor bank 1 usually takes care of the problem. What does this mean? When is the code detected? The P0137 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively low for an extended period of time.

What is the p0137 code for oxugen sensor 2?

Code P0137 triggers when the PCM detects that the signal from oxugen sensor 2 on Bank 1 is below a specific value for a certain amount of time. The Bank 1 portion of the code refers to the side where the #1 cylinder is located. There are two O2 sensors in your vehicle.

What is the error code for the O2 sensor?

Error Code P0137: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2. When an oxygen sensor in a vehicle starts to have issues, either from a bad fuel mixture or the sensor itself going bad, it will trigger a number of codes in a vehicle computer.

What does p0137 mean on a check engine light?

P0137 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.

What does a code p0137 on the ECM mean?

This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set. There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination. A code P0137 may mean that one or more of the following has happened:

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