P2414 Code: Oxygen Sensor Exhaust Sample Error Bank 1 Sensor 1

Oxygen (O2) sensors keep track of the amount of oxygen in the exhaust pipe. They send their findings to the powertrain control module (PCM), which uses the data to maintain the vehicle’s performance and reduce its harmful emissions. If your scan tool reads a P2414 code, there’s likely something wrong with your oxygen sensor.

What Does the P2414 Code Mean?

Diagnostic trouble code (DTC) P2414 stands for “Oxygen Sensor Exhaust Sample Error Bank 1 Sensor 1.” It is set once the PCM detects an O2 sensor signal that’s out of factory specifications.

Bank 1 indicates the number one cylinder bank, while sensor 1 refers to the upstream O2 sensor.

The vehicle’s computer uses input from the O2 sensor to adjust the air/fuel sensor. If the sensor detects too much oxygen at part or full throttle, the PCM assumes that the oxygen sensor was improperly installed or that there is an exhaust leak. As a result, it logs code P2414.

Note: The definition of code P2414 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P2414 Code?

• Bad O2 sensor
• O2 sensor harness issues
• Poor electrical connection in the O2 sensor circuit

What are the Common Symptoms of the P2414 Code?

• Illuminated check engine light

How to Diagnose a P2414 Code

Although P2414 is a generic code, that doesn’t mean that the steps for diagnosing it are the same for every make and model. After all, automakers don’t design their vehicles the same way. So if you’re not sure how to determine what’s causing the issue, it’s best to take your vehicle to a reputable mechanic for an accurate diagnosis.

On the other hand, if you’re confident that you have the skills and knowledge to diagnose code P2414, you can go ahead and do it yourself.

How to Fix the P2414 Code

Fixing trouble codes can be tricky, and the P2414 error code is no exception. If you don’t have the right tools and know-how for the job, you’ll risk making the problem worse if you attempt to resolve it on your own. In that case, it’s best to let a professional handle the problem.

But if you’re a seasoned auto repair DIYer, you can clear the code yourself. Just make sure to review the right manual or consult an online repair database for vehicle-specific repair information before you get started.