GTI 337/20th Anniversary :: Fixing 337 VIN Error?

Recently purchased 02 GTi 1.8t - Carfax Vin Check brings it up as a 337 but its only a 5 speed. Were 5 speed 337's made? Or is this just a vin error?

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GTI 337/20th Anniversary :: Fixing Headlight Chips In The Lenses?

Just wondering what are the different ways people are going about fixing the chips in the lenses? Mine are getting pretty bad and I was looking into fixing it myself.

Well took peoples advice for what worked and did up the headlights today. I think I didn't do enough sanding so I might do them again in the near future. They look better though I think. I took a few pics as I went for others to see and here they are

What they looked like when I started

The car

After sanding with the 600 grit

after sanding with 2000 grit

and end result

You might not be able to see the change very well but you can in person. A little more sanding next time and I think I will be good. Now time for a few

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GTI 337/20th Anniversary :: Draining Fluid - Misfired Codes After Fixing Clutch

Cars have been having problems with the clutch sticking to the floor. Bled the brake valve. Seemed to fix the problem, took a 30 min drive following, and clutch to the floor 2x at the end of the drive. Then, my car started to sound like a freaking wrx! BARELY made it home and it will turn over but quickly spud out. checked codes and it missed fire in 3 cylinders and small puddle under the car. I'm stuck and out of ideas other than coils.

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GTI 337/20th Anniversary :: Engine Code AWP?

What is the factory AWP 20th AE boost pressure?

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GTI 337/20th Anniversary :: Misfire With Engine Code

So i have a 2004.5 gli 6spd that had two of the coils go bad and had a serious misfire with engine code and all car didnt want to even move. So i got this fixed made it about a mile down the road and it had a cylinder 3 misfire took it back had third coil replaced and all new plugs put it. Got the car back it ran fine until i hit about 4000 rpm under heavy boost it misfires but no flashing cel like before and the car still runs but cold start warmed up it misfires under boost

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GTI 337/20th Anniversary :: Engine Code For 2004.5 GLI 1.8t?

whats the engine code for the 04.5 gli 1.8t???

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GTI 337/20th Anniversary :: Code PO322 - Engine Speed Sensor

I drive an 05 Gli n my car has been shutting off on me took it for a diagnostic n the code po322 came up engine speed sensor. So my question is. Is their a DIY on replacing the sensor I'm picking it up tomorrow. To be honest I don't even know where the sensor is located...

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GTI 337/20th Anniversary :: Keep Getting CEL / Code P0420

I have Unitronics Stage 2, and a 3" downpipe... I keep getting a CEL P0420. I know its about the second o2 sensor, but I don't understand why I am getting the CEL with my chip? Could it be possible that when I put the downpipe back in i reversed the 2 sensors? Or are they the same...

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GTI 337/20th Anniversary :: Error Code Is Coming Up For Bad ECM

Ever since ive owned my 337 its always been a pain to keep my cel off but i got a pocket scanner and found that the code is coming up for a bad ECM !!! i called around and the cheapest i found was 1200.

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GTI 337/20th Anniversary :: 04.5 GLI 02 Keeps Throwing Code For 02 Sensor

I have an 04 GLI and keeps throwing a code for the 02 sensor, and after putting the car on the lift, and disconnecting the 02 sensor harness, a fine oil leaks out at the end of the connector and smells and looks like power steering fluid.

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GTI 337/20th Anniversary :: Converter Below Threshold Code

Car is throwing Converter below threshold code. I figured i would put in MagnaFlow High-Flow cat from my work but didnt know if that would work. The position of the stock 02 sensor is what baffles me.

It seems to me the factory design has the 02 sensor in between 2 chambers. Could I just install this Magnaflow cat and put the 02 sensor after the cat? Can get rid of this code after installing high-flow cat?

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GTI 337/20th Anniversary :: 2004 1.8t GLI - Lean Code PO171

I got a 04 mk4 gli 1.8t and I got a po171 lean code and I know it could be a vacuum leak the maf sensor and other things. But when I clear the code it takes a couple days for it to come back on. But when I do clear it and start the car for the first time the car idles read bad almost sounds like miss fire. The when I pull out it hesitates just for a little than runs fine. Could this be a bad or dirty maf sensor? Like I said it takes a while for the cel to come back on.

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GTI 337/20th Anniversary :: Resolving P0601 Code With CEL Light On

I have a 2002 GTI 337. I'm getting a P0601 code with the CEL light on.That code says "internal control module memory check sum error".

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GTI 337/20th Anniversary :: CEL Came On After DV Switch Replaced - Code P0420

So I recently (within the last month) replaced my DV for a Forge 007 and my stock air box for an EVOMS v-flow. My cel came on after the DV switch and was throwing the P0420 code at me. Then I swapped the intake and it has been good but I felt like I was running a bit rich and pulled my codes and it now has P0030 in addition to P0420. Why this is? I have 88K miles. Spoke to a mechanic and he says he thinks it is my cat dying. I'm a bit confused since I have a turbo back exhaust.

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GTI 337/20th Anniversary :: CEL On - Code Is Running Lean With A Base One

I was parking today and when i looked up my CEL was on. So I got the code pulled and it turns out I'm running lean with a base one. I think it was? the mechanic told me it was my o2 sensor but I'm not sure which one it may be whether it be before or after the cat?

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GTI 337/20th Anniversary :: CEL On After Changing O2 Sensors - Code P1174

I just changed both of the o2 sensors on my 337 like i was told and my car ran for about 80 miles until the engine light went back on again I brought it back in to get it scanned again and i got a P1174 code. What it is and some solutions.

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GTI 337/20th Anniversary :: 2002 - Way To Fix P0420 Error Code?

I have a 2002 GTI 337, 1.8T and I get the faulty code P0420 insuf.cat flow?? ... it is a way arround it

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GTI 337/20th Anniversary :: Traction Control Code - Switch To Turn On

I have heard that there is a traction control code u can have switched on when your car is started traction control is automatically off and u have to use the switch to turn it on!

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GTI 337/20th Anniversary :: 2004 GLI 1.8T - CEL Came On / Code P0303 Cylinder 3 Misfire

So I have a 2004 Jetta gli 1.8turbo and my CEL came on last night from normal driving, after it came on it still drives the same. I had it scanned for codes and got the p0303 cylinder #3 misfire. wondering what could be the solution for this? I dont think its the coil pack because I had them changed at the dealer from the recall about 2 months ago (anyway to check?) Also I have 97,000 miles on my car and my last oil change I used 0w-40 oil. I know this is probably not the best oil to use at this mileage but I had an extra 5 quarts of them laying around so I decided to use it.

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