Skip the auto shop - Our mechanics make house calls

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 1000 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!

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: Engine light keeps turning on, 2006 Dodge Caravan

It sounds to me like the dealership simply tightened the gas cap and didn't charge you for it nor recorded the transaction. Not to worry though. I don't believe tightening the gas cap would be the proper repair. What you...

Q: P0300 and P0305. Pending: P0304, P0306, P0171, P0174, P2196, P2198

Hi there. The issue that maybe happening is the are fuel injectors that are not firing and there is a vacuum leak on the engine. Possible multiple sensors are not working causing the P2196 and P2198 codes to appear. For...

Q: Check engine light on

There are a wide variety of reasons why the Check Engine Light switch may be still on. In this era of Honda pilots, there was a known issue related to the transmission torque converter clutch solenoid which controls the engagement...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.