Hi, its passat B8 20182.0 tdi. Its done 135k and after 100k quite often p200ee NOX,sensor SCR Nox catalyst below efficency bank1 message come everytime . Due to this car performance went down gradually and right now gas milage below 30mpg. I changed this garage part aftercoupleof hundred miles Engine management light turned up again with the same error code.please could you tell what is actually wrong or what possible option to do. and fuel consumption is double 35mpg - 38mpg . Please tell me the steps to follow to rectify this problem.

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Passat B8 2018 2.0 tdi (Nox sensor malfunctioning)

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28/11/2021 8:34 am

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Hi, its passat B8 20182.0 tdi. Its done 135k and after 100k quite often p200ee NOX,sensor SCR Nox catalyst below efficency bank1 message come everytime . Due to this car performance went down gradually and right now gas milage below 30mpg.

I changed this garage part aftercoupleof hundred miles Engine management light turned up again with the same error code.please could you tell what is actually wrong or what possible option to do. and fuel consumption is double 35mpg - 38mpg . Please tell me the steps to follow to rectify this problem.