P2276 OBD-II Trouble Code: O2 Sensor Signal Stuck Lean Bank 2 Sensor 3

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P2276 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2276 code

P2276 is a diagnostic trouble code (DTC) for "O2 Sensor Signal Stuck Lean Bank 2 Sensor 3". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P2276 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P2276 code definition

The P2276 trouble code is having issues in bank 2 and sensor 3.

What the P2276 code means

This means that bank two of the engine block, the bank that does not contain the number one cylinder is having issues. It also shows that the problem is in sensor three, which is in the downstream sensor. It means that the oxygen sensor readings have not remained constant, which can cause the code to be stored.

What causes the P2276 code?

Here are several of the most common causes of the P2276 code.

  • Faulty oxygen sensor
  • Faulty electrical connector at the site of the oxygen sensor
  • Blown oxygen sensor fuse
  • Shorted wiring in the oxygen sensor circuit
  • The engine may have a vacuum leak
  • The fuel pressure may be too low or too high
  • There may be exhaust leaks
  • The powertrain control module may be faulty, but this is rare

What are the symptoms of the P2276 code?

In some cases, the engine may be to lean or too rich as well, and there could be a decrease in the fuel efficiency. Some drivers may also notice The Check Engine Light comes on. The driver may also find black smoke being emitted from the tailpipe while they’re driving or the car is idling. The car may still run, but it is obvious there are issues.

How does a mechanic diagnose the P2276 code?

When the mechanic is diagnosing the P2276 code, the first connect their OBD-II scanner to the onboard computer. They then gather information and data from the computer including the trouble codes that have been stored. They will then reset the codes and run the vehicle to see if they return. The codes return, they know they have an actual problem in that the code is not set by accident. The mechanics will then be able to begin the proper diagnosis of the vehicle and then make repairs.

Common mistakes when diagnosing the P2276 code

In the case when there are lean or rich engine conditions that are providing incorrect readings, some technicians may mistakenly replace oxygen sensors. Other times, when the O2 sensor is the problem, technicians may replace the wrong oxygen sensor.

How serious is the P2276 code?

Even though the driver may still be able to drive the vehicle, it is really a good idea to do so when this and other trouble codes may be stored. The black smoke can be alarming, and they will likely notice that the engine is not running properly. It is always in their best interest to give the vehicle checked out by a mechanic who can diagnose it and then make the repairs.

What repairs can fix the P2276 code?

The following are some of the repairs that can be made to help deal with the P2276 code.

  • After resetting and checking the codes again, the mechanic will then start to look for potential faults that could be causing the code
  • They may need to replace a faulty oxygen sensor
  • They may need to replace a fuse for the oxygen sensorenter link description here
  • They will check the engine for vacuum leaks
  • They will check to make sure the fuel pressure is normal
  • They will check for exhaust leaks
  • In rare cases, they may need to replace the powertrain control module

Additional comments for consideration regarding the P2276 code

It is important to make sure that you take proper care of your vehicle, and that means dealing with any of the stored trouble codes. The P2276 code can indicate that there are some serious issues with the vehicle, so it is best to speak with mechanic and have them repaired as soon as possible.

Need help with a P2276 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P2276
oxygen sensors
Sensors

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P2276 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

4,004

Rating Summary
3,661
169
45
25
104
3,661
169
45
25
104
Clarissa

Clarissa

24 years of experience
108 reviews
Clarissa
24 years of experience
Amazing work. Customer service very poor and disorganized.
2003 LEXUS ES300 - CHECK ENGINE LIGHT IS ON - PHILADELPHIA, PENNSYLVANIA
William

William

31 years of experience
144 reviews
William
31 years of experience
William did a great job in diagnosing my car and informing me on what the problem is. The was on time, professional and courteous.
2012 FORD FOCUS - CHECK ENGINE LIGHT IS ON - GLENDALE, ARIZONA
Tung

Tung

13 years of experience
216 reviews
Tung
13 years of experience
Thanks again
1998 HONDA CIVIC - CHECK ENGINE LIGHT IS ON - STONE MOUNTAIN, GEORGIA
Pardeep

Pardeep

18 years of experience
338 reviews
Pardeep
18 years of experience
Pardeep was awesome! He was able to diagnose my problem super quick but I needed same day repairs for a smog check, so I had to take it to the dealer. Will definitely recommend this service and Pardeep.
2009 HONDA CIVIC - CHECK ENGINE LIGHT IS ON - CAMPBELL, CALIFORNIA

More related articles

How Long Does a Throttle Return Spring Last?
Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...

Related questions

Q: P0016 (crankshaft and camshaft correlation bank 1 sensor A)

Hello. Trouble code P0016 is set when the computer detects that there is an issue with the timing between the engine's camshaft and crankshaft signals. The camshaft and crankshafts are connected by a belt or chain, and are precisely timed...

Q: Am I safe to continue driving if my steering is off and check engine light is on?

When the steering is concerned, the issues should be taken seriously. Driving without the assistance of power steering is very difficult if the steering fails. If going at high speeds you may not be able to correct in time to...

Q: Why does my oxygen sensor heater stay in not ready mode on my 2002 Cadillac Escalade

Hello. If you have performed the necessary driver cycles and have not lost battery voltage or reset the computer at any time then you either have a problem with the heater circuit of the sensor or the computer is failing....

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com