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    Forum: 1.8T Engine Forum

    Discussion forum for the 20-valve 1.8 liter turbocharged 4-cylinder engine found in the Audi A3, S3, A4, Golf/Jetta MkIV, New Beetle, Passat, TT, etc.

    Sub-Forums Threads / Posts  Last Post

    1. Forum for vendors to post announcements, deals, group buys, and more.

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      Forum Statistics:

      • Threads: 273
      • Posts: 2,525
    1. Sticky Thread Sticky: FAQ - Maestro Tuning Suite for 1.8T

      Started by groggory, 08-31-2015 03:38 PM
      • Replies: 18
      • Views: 17,598
      06-21-2019, 12:22 PM Go to last post
    2. Sticky Thread Sticky: FAQ Material - 20v ... Best Build Threads

      Started by groggory, 01-17-2013 03:55 PM
      3 Pages
      1 2 3
      • Replies: 63
      • Views: 94,757
      12-16-2018, 02:17 AM Go to last post
    3. Sticky Thread Sticky: FAQ | Links | DIY | Reference - Table of Contents - 1.8t

      Started by groggory, 09-01-2011 06:28 PM
      2 Pages
      1 2
      • Replies: 28
      • Views: 401,137
      12-09-2018, 05:57 AM Go to last post
    4. Sticky Thread Sticky: Beat the Heat Frankenturbo F23 Drag Build

      Started by Beat the Heat, 05-22-2012 04:49 PM
      54 Pages
      1 2 3 4 5 ... 54
      • Replies: 1,343
      • Views: 266,822
      11-09-2018, 07:44 PM Go to last post
    5. Sticky Thread Sticky: 1.8T Forum - Read Me First

      Started by groggory, 12-18-2012 01:53 PM
      • Replies: 0
      • Views: 41,621
      12-18-2012, 01:53 PM Go to last post
    1. check out this compressor map and tell me what you think

      Started by 50trim S, 08-13-2008 08:07 PM
      41 Pages
      1 2 3 4 5 ... 41
      • Replies: 1,014
      • Views: 290,873
      Today, 02:29 AM Go to last post
    2. 1.8t stalls out once low on gas?

      Started by Sparklybitch710, Yesterday 10:57 PM
      • Replies: 0
      • Views: 19
      Yesterday, 10:57 PM Go to last post
    3. 1.8t white smoke at idle after turbo change

      Started by Shrako, 03-23-2020 03:46 AM
      • Replies: 16
      • Views: 534
      Yesterday, 04:22 PM Go to last post
    4. Corrado 1.8t swap coolant bleed

      Started by Htnelson, Yesterday 02:27 PM
      • Replies: 0
      • Views: 48
      Yesterday, 02:27 PM Go to last post
    5. AEB/AMU best 630cc tune?

      Started by Htnelson, 03-14-2020 09:23 AM
      • Replies: 10
      • Views: 472
      Yesterday, 01:15 PM Go to last post
    6. Engine swap

      Started by Buddy-62, 04-03-2020 06:05 PM
      • Replies: 2
      • Views: 108
      Yesterday, 01:08 PM Go to last post
    7. another 50 trim question

      Started by Htnelson, 03-29-2020 11:18 PM
      • Replies: 6
      • Views: 230
      Yesterday, 09:42 AM Go to last post
    8. Bouncing idle

      Started by troici'sgti, 04-07-2020 04:46 PM
      • Replies: 5
      • Views: 100
      Yesterday, 08:36 AM Go to last post
    9. Solving P0171 Code: The Complete Guide

      Started by eaglecat769, 12-18-2009 06:06 PM
      3 Pages
      1 2 3
      • Replies: 53
      • Views: 166,237
      Yesterday, 02:04 AM Go to last post
    10. K04-23xxx

      Started by bigsteveoya, 04-07-2020 07:14 AM
      • Replies: 3
      • Views: 98
      Yesterday, 01:06 AM Go to last post
    11. Rebuilding engine...parts referral needed

      Started by synefx, 03-26-2020 08:53 AM
      • Replies: 3
      • Views: 120
      Yesterday, 12:00 AM Go to last post
    12. My 1984 Rabbit GTI build thread: Haldex + 2.1L + GTX3584RS + E85.

      Started by mainstayinc, 02-21-2017 02:37 PM
      22 Pages
      1 2 3 4 5 ... 22
      • Replies: 549
      • Views: 88,415
      04-07-2020, 10:46 AM Go to last post
    13. AGN Valve cover question

      Started by thatAstock18T, 09-22-2009 09:24 AM
      • Replies: 9
      • Views: 2,437
      04-06-2020, 08:41 PM Go to last post
    14. another radiator fan post

      Started by mdwhit76, 04-05-2020 11:41 AM
      • Replies: 2
      • Views: 82
      04-05-2020, 06:35 PM Go to last post
    15. Eurodyne log help awp

      Started by Ndreed90, 04-05-2020 10:14 AM
      • Replies: 1
      • Views: 57
      04-05-2020, 12:27 PM Go to last post
      • Replies: 2
      • Views: 103
      04-05-2020, 07:41 AM Go to last post
    16. Advice needed!!

      Started by Mat_90, 07-20-2018 03:28 PM
      • Replies: 2
      • Views: 267
      04-04-2020, 04:19 AM Go to last post
    17. 1.8T conversion to N/A

      Started by Ler, 03-06-2020 03:09 PM
      2 Pages
      1 2
      • Replies: 29
      • Views: 1,347
      04-03-2020, 02:51 PM Go to last post
    18. Starts, runs, idles fine for a while, then dies.

      Started by vtraudt, 03-20-2020 11:55 AM
      • Replies: 3
      • Views: 145
      04-03-2020, 09:40 AM Go to last post
    19. Car dies

      Started by 1Driv3r, 03-30-2011 10:22 PM
      • Replies: 2
      • Views: 706
      04-03-2020, 09:33 AM Go to last post
    20. 1.8t rough working

      Started by nenocupra, 03-26-2020 08:43 PM
      • Replies: 6
      • Views: 106
      04-03-2020, 09:30 AM Go to last post
    21. Audi A5 1.8 T engine shaking while idle

      Started by Insomnis, 03-30-2020 11:55 AM
      • Replies: 2
      • Views: 116
      04-03-2020, 09:29 AM Go to last post
    22. coolant smell and smoke

      Started by nenocupra, 04-02-2020 06:43 PM
      • Replies: 0
      • Views: 48
      04-02-2020, 06:43 PM Go to last post
    23. DIY: Ultimate SAI/N249/PCV/EVAP Delete

      Started by nstevic01, 05-20-2010 09:25 AM
      32 Pages
      1 2 3 4 5 ... 32
      • Replies: 798
      • Views: 1,083,513
      04-01-2020, 08:31 PM Go to last post
      • Replies: 1
      • Views: 188
      03-31-2020, 10:45 AM Go to last post
    24. DIY: Cleaning up Engine bay...Removing SAI, N249, PCV, EVAP

      Started by SAVwKO, 03-05-2007 09:26 PM
      67 Pages
      1 2 3 4 5 ... 67
      • Replies: 1,662
      • Views: 742,285
      03-30-2020, 05:44 AM Go to last post
    25. After run coolant pump

      Started by ef8Hemi, 01-28-2020 10:13 PM
      • Replies: 4
      • Views: 468
      03-29-2020, 10:06 AM Go to last post
      • Replies: 6
      • Views: 409
      03-27-2020, 07:24 PM Go to last post
    26. No Communication with ECM

      Started by bigsteveoya, 03-26-2020 10:26 PM
      • Replies: 1
      • Views: 106
      03-27-2020, 03:04 AM Go to last post
    27. Please help me identify this air line

      Started by ootz, 03-26-2020 10:22 AM
      • Replies: 9
      • Views: 167
      03-26-2020, 11:04 AM Go to last post

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