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

3,526

Rating Summary
3,215
155
41
23
92
3,215
155
41
23
92

Nathan

26 years of experience
235 reviews
Nathan
26 years of experience
Nathan was on time for the appointment and is very knowledgeable about my car. I look forward to him completing the service once the parts arrive.
2008 BMW 328I - CHECK ENGINE LIGHT IS ON - TULSA, OKLAHOMA

Chris

19 years of experience
1240 reviews
Chris
19 years of experience
My daughter was very happy with the service provided by Chris.
2001 VOLVO V40 - CHECK ENGINE LIGHT IS ON - IRVINE, CALIFORNIA

Oscar

21 years of experience
66 reviews
Oscar
21 years of experience
Great mechanic and very knowledgeable and realistic.
2005 SAAB 9-2X - CHECK ENGINE LIGHT IS ON - RIVERDALE, MARYLAND

Joseph

15 years of experience
115 reviews
Joseph
15 years of experience
Excellent knowledgeable service. Always ensures the job is done right. Explains problems in easy terms.
2000 NISSAN MAXIMA - CHECK ENGINE LIGHT IS ON - BEL AIR, MARYLAND

More 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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...

Related questions

Q: Trouble code P0455

You should have a mechanic use a smoke machine to test the system for leaks. The purge valve may be leaking causing it to not hold any vapor in the tank at idle. If this occurs it will cause the...

Q: Do I really have an engine problem?

If the check engine light (CEL) has illuminated that does signify that there is an issue with the engine and/or a part of the "engine management system". You should get it checked out especially as it is possible that the...

Q: Still getting error codes

The codes you have for your GMC Yukon, p0171 and p0174, are informing you that the engine is running lean. This means that there is unmetered air entering the engine after the mass airflow sensor and is disturbing the air/fuel...

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