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P2200 - How To Repair: Meaning, Causes, Symptoms, Fixes

P2200 - OBD2 Trouble Code NOx Sensor Circuit

P2200 Code Definition

NOx Sensor Circuit (Bank 1)

What Does the Engine Code P2200 Mean?

Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. "2" in the third character position in a DTC indicates that the fuel and air metering and auxiliary emission controls is experiencing a malfunction. The last two characters "00" is DTC number. OBD2 Diagnostic Trouble Code P2200 means that NOx Sensor Circuit has been detected.

Carly's expert mechanics have identified the following related fault codes. With the information for these fault codes it is often possible to identify and better repair your faulty part/system:


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    What Is the Cause of P2200?

    There can be several damages/failures causing the underlying problem of the OBD2 DTC P2200. To find the root cause of P2200, unlock the “Smart Mechanic" feature in the Carly app.

    What Are the Symptoms of the Code P2200?

    Symptoms for this error

      Illumination of the MIL lamp (engine control lamp) in the instrument cluster

      Error code stored in the error memory

      NOx catalytic converter cannot be regenerated if the sensor is no longer working

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    How much does it cost to diagnose P2200?

    Visiting a car repair shop and letting them perform a diagnostics check can cost you $60-$100. For almost the same price you can get Carly. Its advanced features can cover what a professional automotive scanner that costs over $3,000 would, and more!

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    How To Diagnose and Clear the Code P2200?

    Performing a diagnostics check with a diagnostic scanner helps you identify a particular problem area that is outside the normal range and shows where a fault might be occurring. This helps you to detect errors before they cause more damage to your vehicle. In comparison to generic OBD devices that only provide OBD-level engine-related data, Carly can run advanced manufacturer-level diagnostics, check all your ECUs in your car (like ABS, airbag, multimedia) and get deeper insights. You can find additional information about the trouble code and understand the severity of the problem. With the new Smart Mechanic feature, you get additional professional insights and tips from expert mechanics. You are able to check components and their mechanics, find detailed repair tips, and learn about potential future damage. After you have fixed the problem you can easily clear the fault codes with Carly, too. Also, the diagnostic results are safely stored inside the app or as convenient PDF reports you can share with your friends or a mechanic.

    Common Mistakes when diagnosing the P2200 code

    The most common mistake is to look and try to fix each individual OBD2 (OBD-II) code without having a holistic understanding and approach. Understanding the interrelationship of different systems is crucial to determining the root cause of the problem and finding the right solution. The new Carly Smart Mechanic feature provides a look at the whole system, not just one individual code. Enable Smart Mechanic in your Carly app and get a holistic solution-focused approach when diagnosing the code P2200.

    How Serious Is the Code P2200?

    For now, this issue is not serious. Carly recommends you to check this issue on a regular basis and check if it gets worse later on.

    How to fix the P2200 Code

    P2200 is a generic fault code but the repair steps may vary depending on the root cause and the make/model of your vehicle. Get the Smart Mechanic in your Carly app to learn more and receive guidance.

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    Estimated Cost of Repair for the P2200 Code

    The cost very much depends on the root cause of the issue. To find more information about causes, possible solutions, and potential repair costs, unlock “Smart Mechanic" content on the Carly app.

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    Learn more about the P2200 Code

    Mode of operation of NOx catalytic converter/nitrous oxide sensor

    The NOx storage catalytic converter removes the nitrogen oxides from the exhaust gas. It stores them until its absorption capacity is reached. After regeneration, the NOx storage catalyst is starting again. The storage catalytic converter can only store NOx in a temperature range of 150 to 500° C. During a cold start, the engine has not yet reached the desired temperatures. Therefore, a cold start is critical. During normal driving (300 to 400° C operating temperature), it reaches its maximum efficiency of around 80 percent. The vehicle has an additional consumption of around 2 percent during regeneration of the NOx storage catalytic converter. The nitrogen oxide sensor (also called NOx sensor) consists of a measuring probe and an associated control unit. The two parts cannot be separated. The control unit of the nitrogen oxide sensor communicates with the engine control unit via a local CAN. The nitrogen oxide sensor functions in a similar way to a lambda sensor. The measuring method is based on the idea of tracing the actual nitrogen oxide measurement back to an oxygen measurement. In addition, the NOx sensor has a heater. It is activated as soon as the vehicle is started. The heater is active until the NOx sensor is in the optimum operating state.

    *Every car is unique. The Carly Features that your car supports depend on the model, build year, hardware, and software in the car. Plug the scanner in the OBD2 port, connect to the app, run your first diagnostics, and check which features are available for your car. Also, keep in mind that any information provided on this website is for informational purposes only and should be used at your own risk. Mycarly.com is not responsible for any errors or omissions, or for the results stemming from the use of this information.

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