Engines

Engines, fueling and tuning

  1. 8-valve

    Section for all 8-valve engines
    Discussions:
    3,975
    Messages:
    37,334
    Latest: white oil pressure switch part number references 1.6 bar Jwoodhe1, Jul 18, 2025 at 5:39 PM

  2. 16-valve

    Section for all things related to 16-valve engines
    Discussions:
    4,936
    Messages:
    61,711
    Latest: 16V ABF engine - very high emissions! Peffa, Jul 10, 2025

  3. 1.8 & 1.8T

    Section for all things related to the 20-valve 4 cyl engine
    Discussions:
    2,784
    Messages:
    26,384
    Latest: Open Circuits eddiedebo, Jul 16, 2025 at 8:09 AM

  4. VR5, VR6 & Wx

    Section for all things related to the VR6 & V6 engines
    Discussions:
    1,248
    Messages:
    10,867
    Latest: Mk2 12v VR6 Intake Piping JVNotts, Jul 15, 2025 at 3:09 PM

  5. FSI (inc. GTI 2.0T)

    Section for all things related to the new breed engines (EA888, EA113, FSI, TSI, TFSI - call them what you will)
    Discussions:
    149
    Messages:
    1,285
    Latest: FSI/TFSI into a mk2, best mounting solution? Toyotec, Jun 20, 2025

  6. Diesel

    Section for all things related to diesel engines
    Discussions:
    791
    Messages:
    6,816
    Latest: 1Z 1.9 tdi pump timing issue danster, Jun 29, 2025
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Replies Views
Last Message
  1. A.N. OTHER
    Sticky

    4 cylinder bore & stroke combinations + max bore & stroke list

    A.N. Other, Jan 20, 2011 ... 2 3
    Replies:
    43
    Views:
    51,560
    HPR
    Jun 11, 2020
  2. Toyotec
    Sticky

    Fuel pumps and flow capablity

    Toyotec, Apr 14, 2011
    Replies:
    9
    Views:
    8,046
    Dave
    Jul 3, 2024
  3. davkav
    Sticky

    Idle Stabilisation Valve (ISV) teardown

    davkav, Apr 17, 2018
    Replies:
    10
    Views:
    1,572
    xav
    Oct 9, 2022
  4. VW_SINGH
    Sticky

    Mk1 Golf - Fuel starvation on right hand bends.Analysis and conclusion

    vw_singh, Jun 30, 2009
    Replies:
    15
    Views:
    17,695
    vw_singh
    Jul 3, 2009
  5. rubjonny
    Sticky

    OEM MK4 management wiring => Mk1/2/3 harness install FAQ (Now with added dieselness!)

    rubjonny, Nov 8, 2013 ... 48 49 50
    Replies:
    981
    Views:
    496,287
    rubjonny
    Jun 17, 2025
  6. A.N. OTHER
    Sticky

    Technical Engine Performance Discussions Index

    A.N. Other, Nov 27, 2013
    Replies:
    0
    Views:
    3,348
    A.N. Other
    Nov 27, 2013
  7. A.N. OTHER
    Sticky

    The GTI Engine and its humble origins

    A.N. Other, Sep 28, 2010
    Replies:
    13
    Views:
    13,202
    A.N. Other
    Sep 30, 2010
  8. CRISPY 8V
    Locked Sticky

    VAG COM Users in FAQ

    Crispy 8V, Jun 27, 2006
    Replies:
    0
    Views:
    11,635
    Crispy 8V
    Jun 27, 2006
  9. STU.WILSON

    !!Engine popped!!

    Stu.wilson, Aug 14, 2006 ... 2
    Replies:
    23
    Views:
    1,398
    Stu.wilson
    Aug 17, 2006
  10. STU.WILSON

    !!Help!! engine connector????

    Stu.wilson, Jan 28, 2007
    Replies:
    7
    Views:
    690
    Stu.wilson
    Jan 28, 2007
  11. CDSUTTON9

    !!HELP!! MK3 Golf GTi 16v !!HELP!!

    CDSutton9, Jul 8, 2007
    Replies:
    10
    Views:
    1,054
    Pete Taylor
    Jul 9, 2007
  12. MK2NEWBIE

    !!mk2 20v Help Please!!

    Mk2newbie, Jul 23, 2007
    Replies:
    7
    Views:
    782
    Mk2newbie
    Jul 23, 2007
  13. HARVEY_INC

    !6v Cylinder head rebuild HELP PLEASE

    Harvey_inc, Apr 22, 2006
    Replies:
    4
    Views:
    772
    Harvey_inc
    Apr 23, 2006
  14. DOMMA

    "3A"_"AAD" Comparissons?

    domma, Aug 9, 2005
    Replies:
    6
    Views:
    697
    VR6Will
    Aug 11, 2005
  15. DONO

    "clicking" at cold startup.

    Dono, Oct 30, 2007
    Replies:
    2
    Views:
    608
    Dono
    Nov 1, 2007
  16. SWAYDE

    "Clinking" sound on right turns..

    Swayde, Mar 2, 2005
    Replies:
    10
    Views:
    705
    KeithMac
    Mar 3, 2005
  17. ANDY99

    "Clunk" when i let the clutch up

    Andy99, Mar 2, 2005
    Replies:
    10
    Views:
    723
    Andy99
    Mar 4, 2005
  18. CHRISMC

    "DBilas" Anyone heard of this company??

    chrismc, May 21, 2004
    Replies:
    2
    Views:
    823
    DarrenH
    May 22, 2004
  19. The db

    "Death Rattle" - ooo errr

    The db, Jun 11, 2007
    Replies:
    11
    Views:
    1,017
    The db
    Jun 12, 2007
  20. LOFTY

    "Germany & Denmark" Exhausts any good??

    Lofty, Jun 22, 2004
    Replies:
    6
    Views:
    657
    thegolffather
    Jun 25, 2004
  21. MONZA16V2

    "GTi Engineering" bonnet and tail gate decals?

    monza16v2, Sep 10, 2014
    Replies:
    7
    Views:
    993
    Sirguydo
    Sep 29, 2014
  22. DRIFTER

    "Mayonaise" in oil filler cap

    Drifter, Sep 25, 2004
    Replies:
    5
    Views:
    677
    Raider
    Sep 25, 2004
  23. TOO-MANY-JETTAS

    "Plastigauge"...where can I get it?

    too-many-jettas, Dec 29, 2005
    Replies:
    5
    Views:
    727
    TheSecondComing
    Dec 29, 2005
  24. AKIS16V

    "Power Pipe" (?) VW Golf/Jetta/II 16V

    Akis16v, Jan 12, 2006
    Replies:
    18
    Views:
    880
    prof
    Jan 18, 2006
  25. 2GOLFS

    "Thurrock Big Bore" engines

    2golfs, Mar 11, 2004 ... 2
    Replies:
    31
    Views:
    2,469
    Browny
    Mar 17, 2004
  26. steve r

    '04 Polo engine emissions lamp on, cause?

    steve r, May 6, 2007
    Replies:
    2
    Views:
    532
    Supercharged
    May 6, 2007
  27. DUBMAS

    '89mk2 8v, low rev probs

    dubmas, Jan 23, 2008
    Replies:
    8
    Views:
    684
    Mike_H
    Jan 29, 2008
  28. G_SINGH

    '90 golf gti 16v not starting...

    g_singh, Dec 5, 2006
    Replies:
    11
    Views:
    800
    Mike_H
    Dec 9, 2006
Showing threads 1 to 20 of 22,383

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