Q: Is bank 2 sensor 1 upstream or downstream?

asked by on

Trying to order an o2 sensor for my Avalon . Code said bank2 sensor1 so is that downstream or ustream and is it left or right
My car has an automatic transmission.

Anytime the code reader says sensor 1, it is referring to the upstream. Anytime the code reader says sensor 2, it is referring to the downstream. If you need further assistance with your oxygen sensors, then seek out a professional, such as one from Your Mechanic, to help you.

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. Is bank 2 sensor 1 upstream or downstream?

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: My truck has a loud ticking sound sometimes goes away when warm.

Hello, What you are describing sounds like the noise associated with hydraulic lifters which are a part of the valve train. In the mornings or when the engine is cold, the oil has had the chance, due to gravity to...

Q: are upstream and downstream O2 sensors the same

Hello there, the upstream and downstream oxygen sensors for your 2013 Chevrolet Cruze are not the same. The upstream oxygen sensor is located before the catalytic converter and is used to help calculate the air fuel mixture, and is often...

Q: My radiator is spitting out coolant onto my engine and the check engine light is on but no overheating and its sometimes dont want to start should I get a new radiator

Hi there: Before you decide to purchase a new radiator and have a new radiator installed on your 2005 Nissan Murano, I'd recommend having a professional mechanic complete a car is leaking coolant inspection first. This will allow them to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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.