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  1. #1
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    A3 2.0T Fuel Pressure Issue?

    Hi all, if anyone has any hints on the following, it'd be sincerely appreciated!


    Had the Check Engine light up on my A3 ('07 2.0 FSi) - vag-com is showing the following message below. Switched it off but same fault appeared the next day.


    Any idea how serious this might be i.e. whether OK to drive for the next couple of days without too much issue for the engine? I assume most likely to be a new fuel pressure reg?


    much thanks -
    Ben



    1 Fault Found:

    004767 - Low-Pressure Fuel Pressure Regulation

    P129F - 001 - Pressure too High - MIL ON
    Freeze Frame:
    Fault Status: 11100001
    Fault Priority: 2
    Fault Frequency: 1
    Mileage: 136520 km
    Time Indication: 0
    Date: 2012.12.02
    Time: 10:58:32
    Freeze Frame:
    RPM: 879 /min
    Load: 31.4 %
    Speed: 0.0 km/h
    Temperature: 4.0°C
    Temperature: 1.0°C
    Absolute Pres.: 1000.0 mbar
    Voltage: 14.224 V
    Readiness: 0000 0000

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  3. #2
    Acheron's Avatar
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    Could be the low pressure fuel sensor/thrust sensor thats packing up. They do tend to be problematic

    Current: 2010 Audi S3 Sportback S-tronic
    Ex: 2007 Audi A3 Sportback - 2.0T DSG
    Ex: 2008 Opel Corsa OPC
    Ex: 2004 Opel Corsa Lite
    Ex: 1978 VW Beetle

  4. #3
    _G_
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    Quote Originally Posted by Acheron View Post
    Could be the low pressure fuel sensor/thrust sensor thats packing up. They do tend to be problematic
    second that.. AFAIK it wont cause additional damage but it may be become a pain.. typically, the problem gets worse, and can lead to fuel cutouts at almost any rpm and/or car stalling/running lean/rich

  5. #4
    bmh.01's Avatar
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    Theres a tech note out for 07-08 cars they have a defective design low pressure sensor suffers from fuel ingress and will read full range all the time, they're about £50 from the dealers and a 5 minute job to change.

 

 

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