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How to Clear the Lambda Sensor Error with an OBD2 Reader

Model: (Various brands) Various
Part: Warning light – error code

Let's see how to clear the Lambda sensor error and turn off the engine light on your vehicle, whatever it may be, using an OBD2 reader connected to the EOBD socket. The one recommended by our YouTuber can be found on Amazon with code B01NAQ2878 for £19.49, including delivery. Plug it into the EOBD socket of your vehicle. Turn on the ignition without starting the engine. You also need to download an app on your phone: our YouTuber's is "car scanner". Open it, go to "connect", and scan for diagnostic errors. Read them as they appear. Simply delete them by sending them to the bin. Of course, it warns you that if there's a physical malfunction, it won't resolve it, but that's not the case here. Now, let's see that the engine light has turned off. Before removing the OBD2 reader, disconnect the app.

Updated on 12 August 2026 by ScegliAuto

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