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  1. Golf IV & Jetta IV
    Hey everyone I have recently acquired a 2000 Volkswagen beetle GLS 1.8 turbo The issue I am having today is the car misfires upon a cold start (only on cold start in the car warms up the misfire will go away ) The issue I am having today is the car misfires upon a cold start I have replaced MAF...
  2. Jetta/GLI VI
    I own a 1.8T Jetta 2014, I had rough idling so i suspected spark plugs or the IAC. I just replaced spark plugs with iridium spark plugs from autolite i believe to 18.5lbs torque with torque wrench( i read 18 to 20 lbs is correct). While doing so the coils were so stuck on i could barely get them...
  3. Golf IV & Jetta IV
    BOOST CUTTING AT 4k RPM I have a 2004 1.8t GTI, 5 speed. When accelerating it starts building boost and cuts and completely lags out the car right around 4k rpm. I am not receiving any engine light or warning, and it continues until I let off. If I am gradually accelerating it does not do it...
  4. Passat (B5)
    Hi, I've had my b5 passat for two years slowly building it and finding a mild setup. I have Kkk ko4-15 Stage 2+ tune from Eurocustoms New DV upgraded springs 2.0t coils and adaptors Stock side mount 3in maf Upgrade tip 550cc injectors on 4 bar regulator N75 race valve from Ur0 customs I...
  5. Golf IV & Jetta IV
    hello everybody I am the owner of a mk4 /new beetle 240xxx miles with a built 1.8t The issue I am having is when the gas pedal is plugged in the cars rpm’s will shoot up and won’t stop climbing (as if I’m flooring it)but when unplugged it will idle as normal I have already tried replacing the...
  6. Golf IV & Jetta IV
    Hello everyone! First post here! I own a 2001 GTI (with the 1.8t) and cracked my oil pan. I finally succeeded in removing the pan (those two bolts adjacent to the transmission are bastards). Once I removed the pan, however, I noticed that the baffle that sits beneath the block was somewhat...
  7. Golf IV & Jetta IV
    hey there was just wondering if anyone could help me identify the damages and the part so I can replace it hit a curb and bent the wheel assembly maybe the trialing axle not sure
  8. Passat (B5)
    Hey guys there is a strange noise coming from my engine bay at first i thought it was the serpentine belt tensioner but it is not sadly and the noise occours at low rpm while it idles and you press the accelerator aggressively, it happens while moving or stationery I dont even know how to...
  9. Golf IV & Jetta IV
    Hey, y'all, I was originally getting a P0171 and P0411, but it's now upgraded itself to a P0172. The first time around it was the fuel pump. The second time around it was the SAI system. I'm a bit stumped this time around. I've been running rich according to VCDS, and it definitely smells of it...
  10. Golf IV & Jetta IV
    Hello all, I have a 2005 mk4 gti and I’m stumped… My ac/heat randomly stopped working while I was warming it up (Did a turbo swap). I checked all the fuses on the drivers side and the panel box on the top of the battery, all tested good.. I did notice the AC light and recirculation button aren’t...
  11. 1.8T Engine Forum
    I bought a 02 mk4 golf gti with a 1.8t in it and we’ll it’s quite the **** box but it runs and drives pretty damn well (or it did) for 300$ anyway it’s been sitting for a while do to problems with tags and those are getting resolved pretty soon so I went to start it today and well let’s just say...
  12. Automatic Transmission Forum
    So I have a 2001 Jetta gls 1.8t with the 01m so I replaced the transmission with a used one from the local Pull-A-Part and now it won't engage any gear at all when I first put it in it drove around the block but seemed like it was slipping so I got it back in the garage and now it will not move...
  13. Golf IV & Jetta IV
    I just recently purchased an 04 gti 1.8t. Today as I was trying to find the exhaust leak I saw oil drop come from the intercooler where charge pipe connects. I am concerned that the turbo seal is bad as the car has 228k miles on it. I have some mechanical education/experience but definitely not...
  14. Golf IV & Jetta IV
    So I bought a used 2003 GTI 1.8t AWP, and I can see two cut hose connections. Can someone help me identify if these are supposed to be connected / their purpose? One is coming of the plastic intake tube after the filer, and one is running down to the turbo.
  15. Golf IV & Jetta IV
    I just bought an 04 GTI recently and was wondering how to tell if my ecu has been tuned. The only none stock items on it that I can see by just opening the hood is an cheap BOV and CAI. I want to send off the ECU and get a tune but just want to see if it has been tampered with before.
  16. Golf IV & Jetta IV
    I have a 2001 Golf 1.8t with the AWD engine code, which I retrofitted with a stock wideband ECU. Engine runs well, but is there any benefit to replacing the EV12 style 06A906031S injectors found on the AWD with the EV6 style 06A906031BA injectors found on the AWP? It looks like the only...
  17. GTI 337/20th Anniversary/Jetta GLI Forum
    I recently bought what I thought was a normal 2002 gti. Insurance is trying to tell me that it is a 337 and when I do a VIN search it also shows up as a 337, but I am almost certain that it is not. It doesn't have the special seats, wheels, body kit, steering wheel, shift knob, or anything. Not...
  18. Golf IV & Jetta IV
    I got a GLI and it seems to have a boosting problem when driving it never goes over 1-5psi and its usually sitting around -10 i hear the turbo i have looked for boost leaks as im new to this motor normally a vr6 guy im having trouble finding out the problem. i replaced the cam positioning sensor...
  19. Jetta/GLI VI
    I own a 2015 Jetta with the 1.8L TSI engine. I have had the EPC light come on multiple times since the beginning of August. I have taken it to my local Volkswagen dealership since August. The first time I was there in late August they told me it was a software update. They performed that and in...
  20. Golf IV & Jetta IV
    Hi, everyone Does anybody knows if after a replacement of the battery on a mk4 1.8T 2003, a software intervention is required, obligatory using a VCDS(VAG COM) ? Or you can just simply put a new battery without worries ? In addition I can say that the battery that I want to install has better...
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