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P2020 - How To Repair: Meaning, Causes, Symptoms, Fixes

P2020 - OBD2 Trouble Code Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance

Identical faults

The following faults are identical to P2020. For these, you can follow the information on this page:

P2015 – Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1a)

P2020 Code Definition

Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 2a)

What Does the Engine Code P2020 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. "0" 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 "20" is DTC number. OBD2 Diagnostic Trouble Code P2020 means that Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance 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 P2020?

    There can be several damages/failures causing the underlying problem of the OBD2 DTC P2020. To find the root cause of P2020, unlock the “Smart Mechanic" feature in the Carly app.

    What Are the Symptoms of the Code P2020?

    Symptoms of a defective swirl flap control

      Jerking during acceleration

      Error memory entry

      Motor runs in emergency mode

      Illumination of the engine control lamp

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    How much does it cost to diagnose P2020?

    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 P2020?

    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 P2020 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 P2020.

    How Serious Is the Code P2020?

    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 P2020 Code

    P2020 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 P2020 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 P2020 Code

    Function how swirl dampers work

    The swirl damper is attached to the intake manifold. The swirl dampers are continuously adjusted by an electric swirl damper actuator, the swirl damper actuator is additionally monitored by a sensor in order to be able to compare the actual and setpoint values. In most cases, the swirl damper actuator and sensor are installed on one component. The steerable swirl dampers are located in the intake manifold. Depending on the operating range, the swirl dampers are controlled with different duty cycles. If the the swirl dampers are closed, fresh air is drawn in exclusively through the swirl duct. This increases the swirl of the fresh air drawn in. In four-valve cylinder heads, one intake duct is designed as a "filling duct" and the other as a "swirl duct". Here, the filling duct can be fully or partially closed by a swirl flap in part-load operation. Closing the swirl flap distributes the air volume asymmetrically in both intake ducts. The shape of the swirl duct leads to stronger flow and greater turbulence, which improves the mixing of air and fuel in the low engine speed range. When the swirl flap is open, a higher degree of filling of the combustion chamber with air is achieved. This situation is present at high engine speeds. Swirl flaps have a positive effect on engine emissions and fuel consumption.

    *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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    Top 10: The most common OBD2 trouble codes

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