Q: What sensor affects bank 2?

asked by on

Code p0302,p1153 and p0174,was wondering which O2 sensors would cause all plugs on bank 2 to foul out.checked bout everything except o2 sensors. fuel pressure, plugs, wires, Etc.

My car has 157854 miles.
My car has an automatic transmission.

Code PO302 refers to a misfire. P1153 refers to the O2 sensor not switching often enough. This sensor monitors how often a lean to rich condition or rich to lean condition is present. When there is inconsistency in this, the fault code will register. What this means is that, since the plugs are fouled out, you have a rich condition present in bank 2. P0174 means that the condition of the fuel exhaust gases is too lean. This would suggest that you have an imbalance in the fuel delivery to the intake. Often times, this is a result of a faulty MAF (mass air flow sensor) which regulates the air as it comes into the motor allowing it to mix properly with the fuel before being injected into the motor. I would suggest replacing this and this should fix your problem. If you would like to have this taken care of, a certified professional from YourMechanic can come to your car’s location to replace the mass air flow sensor.

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. What sensor affects bank 2?

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: Found out 1st cylinder in car has no compression....what are my options?

The first thing you have to do is confirm such a diagnosis by getting a second opinion. It is unusual for three cylinders to be perfectly normal and one to have "no" compression. Nevertheless, it is possible. A cylinder...

Q: Too lean in bank 1 and bank 2

Hi and thanks for contacting YourMechanic. When the engine becomes too lean, then combustion chamber becomes very hot causing the head gasket to burn, valves begin to burn, and the rings being to seize up. Check the camshaft sensor and...

Q: Service Engine Soon light driving problems

Any one, or more, out of a list of thousands of Diagnostic Trouble Codes could have caused your vehicle's Check Engine Light to illuminate. Even given your very well stated description of what occurred, no "one" of these many codes...

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.