Q: Where is the oxygen sensor location for Bank 2, Sensor 1?

asked by on

So my Acura apparently has 4 oxygen sensors. Sensor 1 = upstream, Sensor 2 = Downstream. Only thing I need help figuring out is which side of the engine is considered front/rear being that most forums I've read were unsure, some are saying front is the side facing the driver, others say the obvious when your viewing it from opening the hood. After figuring that out, I need help figuring out if Bank 1/2 is in the front/rear of the engine. Perhaps a live picture would help because all I'm finding are drawings

My car has 167000 miles.
My car has an automatic transmission.

The passenger side of the engine is bank one sensor one and bank one sensor two. The driver’s side of the engine is bank two sensor one and bank two sensor two. This is the standard for all vehicles with a six cylinder motor. Here is another diagram but it should show the locations more clearly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Where is the oxygen sensor location for Bank 2, Sensor 1?

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: Car overheats and smokes

The overheating could be from one or more problems on this particular engine and vehicle: the water pump, radiator, or thermostat may be bad or leaking. If the smoke is coming from the tailpipe, you likely have blown a head...

Q: My car hesitates at 1800-2200 rpm

Claimed by Ty Thompson

Q: PCV Vales

There is one PCV valve and two hoses on your engine. If the engine oil has been changed regularly, the valve is typically trouble free. You can test the valve operation to some extent by pinching off vacuum to it...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.