Q: when looking at the car with hood up where is the downstream O2 located left or right side of the car

asked by on

I need to know where the downstream O2 sensor is located. Left or right side of the card when the hood is open. In simple terms.

My car has 77500 miles.
My car has an automatic transmission.

The downstream oxygen sensor is screwed into a "bung" on the rear of the catalytic converter assembly beneath the vehicle. The sensor should be readily visible as it will have wiring connected to it. The sensor should not be removed unless it has been directly tested and the test documents a fault. Note that if you were merely given a diagnostic trouble code "referring" to the sensor such does NOT represent a direct test of the sensor. If you need direct testing of the sensor in order to determine its status and.or you want a diagnostic because the check engine light is on, please request a check engine light diagnostic. If you have further questions or concerns as you decide what to do, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you get the best possible results.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. when looking at the car with hood up where is the downstream O2 located left or right side of the car

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What can cause my oxygen sensor to get damaged during a oil change and fuel system cleaning?

Hi, thanks for writing in. The oil change would not damage an oxygen sensor. The fuel system cleaning could possibly cause this condition, but it depends on the cleaner type and mixture. I would recommend having an expert from YourMechanic...

Q: What are the effects or symptoms of bad fuel injectors?

Hello. A bad fuel injector can fail closed, fail open or not seal when closed and can work normal but have reduced flow from blockage. A fuel injector that is failed closed will cause total misfire all the time on...

Q: Warning lights appear and car goes into limp mode

Hello. Limp mode is a feature that was set in place to protect the engine and/or transmission from further damage, and to give the driver enough time to get off the road in the event of a serious engine malfunction....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.