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  1. #1
    Veteran Member Four Rings gotaudi's Avatar
    Join Date
    Jan 26 2006
    AZ Member #
    9933
    My Garage
    2001 A4 1.8T
    Location
    Socal

    What does this code mean, how to fix it?

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    I got the code ( P1681 Contr. unit programming, programming not finished) from the ecu i have a 1997 audi 1.8T (Automatic) chipped w/APR 91 oct.


    Please help!!!!!!!!!!!

  2. #2
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    have you cleared it? and then seen if it comes back? does the car run fine? tell us more sister..

  3. #3
    Veteran Member Four Rings gotaudi's Avatar
    Join Date
    Jan 26 2006
    AZ Member #
    9933
    My Garage
    2001 A4 1.8T
    Location
    Socal

    I cleared it several times it still came back. The car runs fine, but i get horrible gas milege.
    BetaAlphaTau Member#22
    Mods:
    GTRS Elim+Unitronics+ATP high flow mani+Neuspeed TIP+Custom intake+Labree HFC+Apexi AVC-R+APR Exhaust+Precision FMIC+SB OFE Stage 4+034 street density motor mounts+Purems snub+S4 Front bumper+18" BBS RC rims+Neuspeed race springs+Bilstein shocks+Nuespeed sways=
    73 74 69 6c 6c 20 73 6c 6f 77 <--- Look it up

  4. #4
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    how long ago did you get chiped?

  5. #5
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    that is a problem with the ecu or ecm. electronic control unit or module. you might wanna call the place you got the chip done at.. let them know.. i dont know what causes that code..

    First digit structure is as follows:

    * Pxxxx for powertrain
    * Bxxxx for body
    * Cxxxx for chassis
    * Uxxxx for future systems

    Second digit structure is:

    * P0xxx Government required codes
    * P1xxx Manufacturer codes for additional emission system function; not required but reported to the government

    Third digit structure is:

    * Px1xx measurement of air and fuel
    * Px2xx measurement of air and fuel
    * Px3xx ignition system
    * Px4xx additional emission control
    * Px5xx speed and idle regulation
    * Px6xx computer and output signals
    * Px7xx transmission
    * Px8xx transmission
    * Px9xx control modules, input and output signals

  6. #6
    Veteran Member Four Rings gotaudi's Avatar
    Join Date
    Jan 26 2006
    AZ Member #
    9933
    My Garage
    2001 A4 1.8T
    Location
    Socal

    About 8 months ago. I got VAG about 6 Months ago and this is the only code i have seen. every time i clear the code it comes back but their is no cel
    BetaAlphaTau Member#22
    Mods:
    GTRS Elim+Unitronics+ATP high flow mani+Neuspeed TIP+Custom intake+Labree HFC+Apexi AVC-R+APR Exhaust+Precision FMIC+SB OFE Stage 4+034 street density motor mounts+Purems snub+S4 Front bumper+18" BBS RC rims+Neuspeed race springs+Bilstein shocks+Nuespeed sways=
    73 74 69 6c 6c 20 73 6c 6f 77 <--- Look it up

  7. #7
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    you still havent contacted the place you got the chip done in 8 months of having this problem?

    what is your gas milege?

  8. #8
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    do you clear the code from the engine fault section, or just the auto scan mode?

  9. #9
    Veteran Member Four Rings gotaudi's Avatar
    Join Date
    Jan 26 2006
    AZ Member #
    9933
    My Garage
    2001 A4 1.8T
    Location
    Socal

    about 15mpg
    BetaAlphaTau Member#22
    Mods:
    GTRS Elim+Unitronics+ATP high flow mani+Neuspeed TIP+Custom intake+Labree HFC+Apexi AVC-R+APR Exhaust+Precision FMIC+SB OFE Stage 4+034 street density motor mounts+Purems snub+S4 Front bumper+18" BBS RC rims+Neuspeed race springs+Bilstein shocks+Nuespeed sways=
    73 74 69 6c 6c 20 73 6c 6f 77 <--- Look it up

  10. #10
    Veteran Member Four Rings gotaudi's Avatar
    Join Date
    Jan 26 2006
    AZ Member #
    9933
    My Garage
    2001 A4 1.8T
    Location
    Socal

    yes it is from the engine fault section
    BetaAlphaTau Member#22
    Mods:
    GTRS Elim+Unitronics+ATP high flow mani+Neuspeed TIP+Custom intake+Labree HFC+Apexi AVC-R+APR Exhaust+Precision FMIC+SB OFE Stage 4+034 street density motor mounts+Purems snub+S4 Front bumper+18" BBS RC rims+Neuspeed race springs+Bilstein shocks+Nuespeed sways=
    73 74 69 6c 6c 20 73 6c 6f 77 <--- Look it up

  11. #11
    Veteran Member Four Rings drlandry00's Avatar
    Join Date
    Dec 19 2004
    AZ Member #
    4562
    My Garage
    2000 A4 Quattro 1.8t 5spd Ebony...
    Location
    rhode island

    i cant tell you exactly what is wrong, sounds like a fucked program or chip problem.. i would call the chip place and tell them to reflash the program.. and make sure they gave you the right octane program..



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