Skip the auto shop - Our mechanics make house calls

P0153 OBD-II Trouble Code: 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)

Check Engine Light

P0153 trouble code definition

02 Sensor Circuit Slow Response (Bank 2 Sensor 1)

What the P0153 code means

The P0153 trouble code is an indication that the oxygen sensor is not properly regulating the fuel and oxygen levels. The oxygen sensor voltage switches between high voltage (fuel) and low voltage (air) at a rapid rate of speed.

When the oxygen sensor switches at a speed that is slower than normal, it causes a slow response between the oxygen sensor and the power control module (PCM).

What causes the P0153 code?

  • Intake air leaks
  • Gas leaks in the exhaust, located near the oxygen sensor
  • Broken, bare or shorted wires leading to the oxygen sensor
  • A faulty oxygen sensor

What are the symptoms of the P0153 code?

Two symptoms that are most commonly associated with the P0153 trouble code are:

  • The service engine soon/Check Engine Light will be on
  • There will be an increase of fuel consumption.
  • It is not common, but there may be drivability problems as well.

How does a mechanic diagnose the P0153 code?

  • Uses an OBD-II scanner to record all trouble codes and freeze frame data
  • Inspects the exhaust and check for oil or coolant leaks
  • Inspects the wires leading to the oxygen sensor for any breaks or exposed wires.
  • Inspects the intake and vacuum hoses by going to the intake or engine to check for vacuum leaks
  • Inspects the oxygen sensor for damage or contaminants that could be causing the oxygen sensor to malfunction
  • Checks the oxygen sensor voltage switch, using the OBD-II scanner, to determine whether or not the sensor voltages are switching as they should

Common mistakes when diagnosing the P0153 code

The mistake that is most commonly made when diagnosing the P0153 trouble code is that the oxygen sensor is replaced without first inspecting the other components of the system. Replacing the oxygen sensor won’t fix the problem or clear the P0153 trouble code if there is an issue somewhere else that is causing the error code, such as a leak in the exhaust or intake.

How serious is the P0153 code?

  • It is not a serious code. The car will use more fuel but it should not cause any more problems that that.

  • It some rare cases, and over a long period of time, this code could affect the performance of the catalytic converter.

What repairs can fix the P0153 code?

  • Repairing broken or bare wires going to the oxygen sensor
  • Repairing leaks in the exhaust
  • Repairing vacuum leaks
  • Replacing the oxygen sensor (bank 2 sensor 1)

Additional comments for consideration regarding the P0153 code

In most cases, this repair will require specialized tools. The oxygen sensor commonly ceases up in the exhaust pipe and when this happens, an oxygen sensor tool and a heating agent will be necessary to complete the repair.

An oxygen sensor set can be purchased or rented from many auto part stores and a propane torch is commonly used as the heating agent.

Need help with a P0153 code?

YourMechanic offers certified mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....


Related questions

Q: Car stalling when stopped

The codes all reference engine misfires. Continued misfires can cause the catalyst to fail and block the exhaust. The past diagnosis you had that the coils could be bad was correct. The coils and plugs should be replaced first and...

Q: rough idle, heavy missing, fault codes P0301 and P0456. lack of power, where do i start to diagnose this?

Hi there. From the description you have provided, for the P0301 rough idle and heavy misfire and P0456 evaporative small leak detected, the problems are unrelated. The P0301 is a #1 cylinder misfire code. It could be, a spark plug...

Q: P2098, P0153

Hello. The codes you are receiving have more to do with the oxygen sensor that is after the catalytic converter and not the one that is pre-cat. I usually install a scan tool and monitor the output of the secondary...