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  1. Jetta Troubleshooting
    Hi. My 2002 Jetta 1.8t is experiencing hard to start, takes 2-7 turns of the ignition before it struggles to start. It also has a hard time accelerating from a stop and in each gear as well. I have a manual trans. I have changed the fuel pump, fuel filter, cam position sensor, cleaned the AMF...
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    2004 Volkswagen Jetta 1.8T any advice would be nice I would just like to get one of the right direction if possible this is my readout VCDS Windows Based VAG/VAS Emulator Running on Windows 10 x64 Version: Release 22.10.0 www.Ross-Tech.com Dealer/Shop Name: Workshop Code: 000 00000 Diagnostic...
  3. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    i have a 03 jetta 1.8t and i just got a stage 2 revo tune that was used and i know the guy personally so i know it’s real my car runs and drives like normal i don’t really do a low gear pull too see if it was really any quicker i just did a couple 5th gear to the floor and let it build boost...
  4. ELECTRONICS AUDIO/VIDEO/PHONE/VEHICLE COMPONENTS
    Hey, so new Jetta owner here! So I have a 2001jetta 1.8t I bought about a week and a half ago. So when I bought her she had no stereo and I had best buy put one in. After that I put in some Kenwood speakers and at about volume 22 and the speakers started scratch/crackling. So I scheduled an...
  5. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Ok so my dad and I pulled my 1.8 out and put a rebuild kit in it and we realized my turbo was cracked and I had another one from a junk yard that seemed to be in good health. Well we put it all together, put it back in the car and fired it up and it was running sort choppy but we didn't have...
  6. MK4 BUY / SELL / TRADE
    2004 Jetta GLS 1.8t/5-spd white/tan cloth Monterey 15"s 256k RUNS & DRIVES GOOD $2555 2004 Jetta 1.8t GLS 5-speed, white, tan cloth, Monterey 15"s, window tint, 256k RUNS & DRIVES GOOD! Close your eyes and you should be able to picture this car. ;) I bought this car with a "rebuilt" title. It...
  7. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    hey guys awhile back i made a thread about my boost issue(only spooling 8-10psi max) and im on an apr stage 2 tune with a forge 007 dv, 3" catless turbo back exhaust, the past few days my car sounds like its pulling way way way way too much air or something(Alot like the surging issues, just...
  8. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    I have a 2002 1.8t Jetta. The car likes to hesitate runs great when first is running but once it gets warm and should go into closed loop it runs bad, idles rough, does like to accelerate normal and ect. The car has stock muffler with no cat and has no codes. I don't have a VAG-COM yet so I have...
  9. MK4 BUY / SELL / TRADE
    I had a minor mishap with my MKIV last week and unfortunately it will not recover (damn icy roads)… Insurance decided to total it due to the fact that MKIV's have some age on them now and cost too much to fix anymore to them. To top it off, I had just had my brand new 3" 42DD exhaust put on…:'(...
  10. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Obligatory first post ever statements... Now down to business. I have a 2003 GLS 1.8 turbo with a manual transmission and roughly 167k miles on it. To my knowledge the turbo has never been replaced and neither have the water pump or timing belt (although in reality the WP and TB probably have...
  11. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Hi I'm new to the site, and to the volkswagon world. I recently bought an 03 1.8t and the engine runs fine and when I go to put it in gear it's like the clutch is slipping. I priced the clutch assembly and they wanted 760 dollars. Alittle bit pricey lol. So my dad had an 02 2.0l and I was goin...
  12. FAQs
    I just recently purchased an 03 1.8t 2 weeks ago. I'm looking forward to doing a few things to it, nothing over the top. But I was wondering about getting a new after market come air filter (typical right?). And I'm sure this has been a asked countless times. But... What is the best aftermarket...
  13. MK4 BUY / SELL / TRADE
    2004.5 VW Jetta GLI 1.8T - Blue Lagoon ** CLEAN AND CLEAR TITLE - Ready to Sell! ** Odometer: 116,xxx miles (increasing daily) Lots of "little" upgrades: - Gonzo Tuning Stage 2+ software - EuroSport Cool-flow intake w/ brand new filter - Eurojet discharge pipe - APR Turbo Inlet Pipe - 2.0t...
  14. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Alright my car is driving me up a wall, I've replaced what I have that could go bad to cause low boost but still I can't get over 6psi. Sometimes the boost will fluctuate and not go over 4 psi. I've replaced the DV because the vacuum nipple was broke, I replaced with a 710n. I've done the N75...
  15. Jetta Troubleshooting
    Hallo, wie geht es dir Freunde? Car specs: 2004.5 Jetta GLS 1.8t AWP Stage2 ecu ~145,000 About a month ago I installed a stage2 ecu (opttuning). Bought it from a fellow Minnesota gentleman off the vwvortex forum (how very lucky of me). I called opttuning to see what the stage 2 is all about...
  16. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    hi everyone, about two months ago i destroyed my 04 1.8t's tiptronic transmission finally after 9 or so months and 10,000 miles on revo stage 2 and many mods. the transmission was not rebuildable as it had a fist sized hole in the case. now i am swapping the 5 speed out of an 02 tdi jetta. i...
  17. POWERTRAIN MODS - ENGINE / TRANS / TURBO / EXHAUST
    Hallo, wie geht es Ihnen, meine Herren? I've recently deduced a problem to the point where I figure my ECU is kaputt. I've been sniffing around Ebay for new ECUs but I'm shopping a bit blindly since I don't know exactly what I am looking for. I believe I need to know my engine code, which is...
  18. POWERTRAIN MODS - ENGINE / TRANS / TURBO / EXHAUST
    Hey, So I have had my VW GLI 6 SPEED 2005 jetta 1.8t (yes it is the last year they made the mk4 it is a 2005) for a few months now and I am currently running a APR stage 2 tune and a have a few small mods the list is -3in turbo back exhaust -Raceland suspension -APR driveter valve -cold air...
  19. MK4 BUY / SELL / TRADE
    Located in Hamilton Ontario. Looking to purchase some oem roof racks. Message me, also looking for 1.8t down pipe 3 inch, or cat back. Thanks.
  20. INTRODUCTIONS - VW JETTA OWNERS & ENTHUSIASTS
    Just recently picked up a new 2014 black 5spd 1.8T SE. Then the hunt for a Jetta oriented forum began. Found jj aimlessly surfing the interwebs and it seems like I found the right place.
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