Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-55793-184uu3jjs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-55793-184uu3jjs:47:15602)
    at /tmp/execjs20161208-55793-184uu3jjs:49:31860
    at a.r.perform (/tmp/execjs20161208-55793-184uu3jjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-55793-184uu3jjs:49:31821)
    at r (/tmp/execjs20161208-55793-184uu3jjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-55793-184uu3jjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-55793-184uu3jjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-55793-184uu3jjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-55793-184uu3jjs:173:8

P0144 OBD-II Trouble Code: O2 Sensor Circuit High Voltage (Bank 1, Sensor 3)

Check Engine Light

P0144 code definition

O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

What the P0144 code means

P0144 is the OBD-II generic code which indicates that the Engine Control Module (ECM) has detected excessively high voltage from the bank 1 sensor 3 O2 sensor circuit, indicating a rich condition.

What causes the P0144 code?

  • The O2 sensor bank 1 sensor 3 is the sensor after the last catalyst. A rich condition may be a problem with the catalyst not cleaning the exhaust. This can be caused by a broken up catalyst.

  • The ECM detects a short to power in the circuit for the O2 from a wiring or sensor problem.

What are the symptoms of the P0144 code?

  • The code will cause the ECM to turn on the check engine light.

  • The ECM does not use this sensor for fuel control but for a catalyst monitor only and should not cause a direct impact on the engine performance.

How does a mechanic diagnose the P0144 code?

  • Checks the electrical connections or wire harness cover to the O2 bank 1 sensor 3 for shorts or sensor damage

  • Scans codes and documents freeze frame data, then clears codes to verify the sensor failure

  • Monitors O2 sensor data to see if the voltage is stuck above 500 mV

  • Checks the exhaust catalyst for damage or if it broke apart in the housing

  • Follows the manufacturer's specific pinpoint tests for further diagnosis

Common mistakes when diagnosing the P0144 code

Follow these simple guidelines to prevent mistakes:

  • Check the catalyst integrity for any damage before replacing the O2 sensor

  • Check the O2 sensor for oil or coolant contaminants that may short the sensor from engine leaks

  • Scan the replacement O2 sensor to make sure the heater circuit works properly

  • Check the removed O2 sensor for damage from a defective catalyst that will cause sensor failure

How serious is the P0144 code?

  • The code may cause the engine to fail emission testing.
  • The code may indicate a problem with the catalyst and it may block the exhaust.

What repairs can fix the P0144 code?

Additional comments for consideration regarding the P0144 code

The O2 sensor signal circuit for bank 1 sensor 3 is used to monitor the catalyst efficiency and does not affect the fuel control of the engine.

Need help with a P0144 code?

YourMechanic offers certified mobile 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

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How Long Does a Throttle Return Spring Last?
Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...


Related questions

Q: Car maintainence

Hi, thanks for writing in. You will need to have a mechanic scan the computer to see what codes are stored and pressure test the oil pressure to see if it is a sensor or internal engine problem. The tire...

Q: What would cause brand new O2 sensors to give codes 172, 173, 176, and 177, rich and lean conditions, both sides at the same time?

When it comes to across-the-board codes being set such as this, it is usually a result of something "upstream" creating the condition to set all these codes. For instance, it is rare for both O2 sensors to fail at exactly...

Q: Engine turned off while I was driving and wont start back up.

The noise you heard right before the transmission shifter went into neutral was the transmission probably popping a gear. A transmission that is noisy in gear and goes into neutral could have a solution such as adding some fluid or...