Skip the auto shop - Our mechanics make house calls

Q: I put a cold air intake on my car I have replace the O2 sensor that is failing area code p0151 I'm not sure what to do mass is new

asked by on

I have put a new cold air intake made for the Mazda 6 2006 3.0 I'm getting an error code of p0151 which means oxygen sensor current low voltage bank 2 sensor 1 I have replaced that sensor I have replaced the mass airflow sensor not sure what else I can do please help

My car has 145657 miles.
My car has an automatic transmission.

Hello. If the P0151 code persists after replacing the oxygen sensor, then it may be possible that the issue is with the wiring. If there is any damage or wear to the oxygen sensor connector or wiring there may be a compromise in the voltage, which can set off the light. I would carefully examine the wiring and connector for any signs of damage or wear. If the issue began only after installing the cold air intake, it may also be possible that the issue is related to the cold air intake. If you think that may be a possibility, I would try reinstalling the stock cold air intake to see if that may solve the issue. For in-depth help diagnosing the code, consider enlisting an expert from YourMechanic to come to your for an inspection.

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!
  • Home
  • Questions
  • I put a cold air intake on my car I have replace the O2 sensor that is failing area code p0151 I'm not sure what to do mass is new

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 causes the engine to run rough and the engine to die when the accelerator is pressed?

Hello. You have covered most of the common parts that fail with the exception of the idle air control valve/module. This is a unit that works similarly to the mass air flow sensor as it regulates the air intake into...

Q: 2006 Tunda Oil Pressure gage shows between 1/2 - 3/4 depending on the speed going

Hello. The truck is designed to have a lower oil pressure at lower engine speeds and more pressure as the engine speed is increased. This sounds like it is normal operation of the gauge and oil pressure in the engine....

Q: Wobble when braking and speeds over 50 MPH

Hi there. This is typically caused by warped rotors. When the rotors are warped, the steering wheel will shake when applying the brakes. This is a common issue. I usually measure the rotors to see if they are good, but...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.