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P2540 - Low Pressure Fuel System Sensor Circuit Range/Performance

Discussion in 'A3/S3/Sportback (8P Chassis)' started by adamccc, Mar 16, 2013.

  1. adamccc
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    adamccc Member

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    [Mar 16, 2013]
    Hi Guys,

    Got round to buying a reader to check what is causing the emission control light to come on and it's coming up as P2540 - Low Pressure Fuel System Sensor Circuit Range/Performance. Read online that this is usually due to the fuel pump - the previous owner fitted Autotech internals but not sure if the stock fuel pump can cope with the load of Stage 2+

    Anyone experienced this before? Advice would be great
    #1
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  3. adamccc
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    adamccc Member

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    [Mar 16, 2013]
    Is it worth replacing the relay first and see if thats the issue and then going for a new pump?
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