1.8 & 1.8T

Section for all things related to the 20-valve 4 cyl engine

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  1. 20V_JIMMY
    Sticky

    OEM management wiring: 1.8T => Mk2 harness install FAQ

    20v_jimmy, Dec 29, 2009 ... 36 37 38
    Replies:
    756
    Views:
    458,394
    rubjonny
    Jun 27, 2025
  2. rubjonny
    Sticky

    SEAT Ibiza AQX/AYP 20v -> CE2 + general fusebox plug reference guide

    rubjonny, Apr 25, 2017 ... 2
    Replies:
    37
    Views:
    12,169
    rubjonny
    May 28, 2025
  3. MICHAEL GHIA
    Sticky

    1.8T 20V Engine codes FAQ

    Michael Ghia, Oct 31, 2004 ... 4 5 6
    Replies:
    107
    Views:
    261,516
    J66KE B
    Oct 15, 2016
  4. A.N. OTHER
    Sticky

    VAG Engine Part Dimensions

    A.N. Other, Nov 8, 2007
    Replies:
    1
    Views:
    8,084
    A.N. Other
    May 9, 2011
  5. Brian.G
    Sticky

    1.8T AUG Block Cutaway Pictures.

    Brian.G, Jun 18, 2009
    Replies:
    11
    Views:
    13,541
    Brian.G
    Jul 8, 2009
  6. MICKY1
    Sticky

    20v spec check - AEB fitting list

    micky1, May 17, 2009
    Replies:
    15
    Views:
    23,839
    micky1
    Jun 1, 2009
  7. EDDIEDEBO

    Open Circuits

    eddiedebo, Jul 7, 2025
    Replies:
    10
    Views:
    216
    eddiedebo
    Jul 16, 2025 at 8:09 AM
  8. JIM POTER

    NON start after ecu flash - Idea's?

    jim poter, Jun 10, 2025
    Replies:
    4
    Views:
    145
    Toyotec
    Jun 11, 2025
  9. CHOONA

    AUM Query

    Choona, May 8, 2025
    Replies:
    0
    Views:
    536
    Choona
    May 8, 2025
  10. CGTEN

    Pre-Cat O2 Sensor for AUM

    cgten, Mar 10, 2025
    Replies:
    3
    Views:
    254
    rubjonny
    Apr 7, 2025
  11. MARTTI HOOP

    S3 APY engine wiring loom an ECU

    Martti Hoop, May 31, 2020
    Replies:
    9
    Views:
    2,124
    rubjonny
    Apr 7, 2025
  12. DSJ20V

    Help with few wires on a mk2 to mk4 loom

    dsj20v, Apr 4, 2025
    Replies:
    0
    Views:
    139
    dsj20v
    Apr 4, 2025
  13. ROCCO_BALBOA

    1.8T swap heater matrix plumbing

    Rocco_Balboa, Jul 24, 2022
    Replies:
    7
    Views:
    1,174
    rubjonny
    Feb 17, 2025
  14. BIGJOE72

    SWAP - 1.8t(AUM) lupo(AUC) wiring doube check

    BiGJoE72, Jan 9, 2025
    Replies:
    6
    Views:
    330
    BiGJoE72
    Feb 5, 2025
  15. 0ZMAN

    1.8t Tappets (AGU) - Stroker

    0zman, Nov 2, 2024
    Replies:
    0
    Views:
    186
    0zman
    Nov 2, 2024
  16. FALL-APART-DAVE

    1.8 20v NA intake on a 1.8 20vT?

    fall-apart-dave, Sep 27, 2024
    Replies:
    2
    Views:
    339
    fall-apart-dave
    Sep 30, 2024
  17. MIG

    Complete cylinder misfire, Mk4 1.8T AGU.

    MiG, Aug 23, 2024
    Replies:
    18
    Views:
    864
    rubjonny
    Sep 9, 2024
  18. IUSTI2003

    Ignition live feed

    iusti2003, Aug 28, 2024
    Replies:
    1
    Views:
    181
    rubjonny
    Aug 29, 2024
  19. DEEPPOLO

    1.8t ARY Cambelt cover fowling Master Cylinder.

    deeppolo, Jul 11, 2024
    Replies:
    8
    Views:
    470
    GVK
    Aug 16, 2024
  20. DEEPPOLO

    1.8t Oil Return Pipe fouling mk2 rear mount

    deeppolo, May 14, 2024
    Replies:
    2
    Views:
    407
    deeppolo
    Aug 16, 2024
  21. EDDIEDEBO

    Best 1.8t MK2 donor car

    eddiedebo, Aug 6, 2024
    Replies:
    4
    Views:
    303
    eddiedebo
    Aug 14, 2024
  22. GOLF MK9

    Audi S3 amk ,will BAM loom fit

    Golf mk9, Jul 26, 2024
    Replies:
    5
    Views:
    321
    rubjonny
    Aug 2, 2024
  23. COUPECHAMP

    hot race engine

    coupechamp, Feb 9, 2024
    Replies:
    10
    Views:
    696
    daNpy
    Jun 28, 2024
  24. FLLOYD1

    Cam/crank sensors

    Flloyd1, Jun 13, 2024
    Replies:
    7
    Views:
    708
    GVK
    Jun 16, 2024
  25. Mk2daz

    1.8T not starting! - Emerald K6+ ECU

    Mk2daz, Feb 13, 2024 ... 2
    Replies:
    23
    Views:
    1,366
    Acloughvw44?!
    May 22, 2024
  26. GLOVES88

    Mk2 1.8T Cruise Control

    Gloves88, Sep 26, 2013 ... 2
    Replies:
    27
    Views:
    10,976
    rubjonny
    Apr 22, 2024
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