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There are three different engine codes for the VW 1.8t, AWD, AWW and AWP. VW switched engine codes for the 2001 and 2002 model years, so if you have a 2000 its an AWD a 2001 is gonna be AWW and a 2002 is AWP. There is the possibility that you have a 2000 with the AWW engine or a 2001 with the AWD engine in order to check and make sure there are a few ways to find out:
1) Look in the spare tire well.
There is a sticker on the side wall of the well, showing all the spec codes
for the car. You will see either AWP, AWW or AWD as one of those codes.
2) Take off the engine
cover, (facing the engine) look at the left side closest to you. The engine
code is stamped into an engine lift bracket facing up.
Click
here for a pic.
The differences between
the AWW and the AWD are in the variable cam timing that the AWW has. The
AWD engines use different software and use "CL" ECUs. While an AWW
engine code has a "DL" ECU. Besides variable cam timing, tuners are
able to tune more HP from the AWW's new "DL" ECU than the AWD's "CL" ECU
while torque values remain the same. AWP's are the 180hp version that
already have increased boost.
How do I know if I have a bad diverter?
The diverter is known to have some problems and things only get worse once you increase the boost. You will know your DV is bad when you hear a honking noise. The honking is a sign that the DV is failing to close/seal properly and the pressure of the turbo is squirting by the diaphram making the honking noise. You may also notice a loss in power with a bad DV and boost will drop off in the higher rpms. To fix this problem there are various aftermarket DV's available, check out this page more info on diverters.
Yes and No: according to the Magnuson-Moss Warranty Act: "No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade or corporate name..." (15 U.S.C. 2302©)
So basically, if you have a
warranty claim, the dealer (or warrantor) must prove that the part that you
modified directly caused the failure. For example, if you chipped your car
and the exhaust falls off, then the car is still under warranty. But
if you modify something that causes another part to fail then your warranty
will not cover the part that failed.
What oil to use in my 1.8T?
The manual recommends that
you use a 0W-30. The most popular used by enthusiats is Mobil 1 Synthetic
0W-30. A better choice if you can get you hands on it is 0W-40.
How do turbos work?
Here is a very informative link to how turbos work, http://www.howstuffworks.com/turbo.htm
Go to your local Rat Shack and pick up a 33uF electrolytic capacitor, or something close to it. This will give you a ~5 sec delay, bigger values give bigger delay. I will explain this more later. Bring an extension cord out to your car and plug your soldering iron in. While the iron is warming up, pull out the ASR switch as follows: Hold in the ASR button, and pull out the seat warmer switch (If you have one). Then pull out the ASR switch. Basically just get that switch out of the dash, leave it plugged in though. Take your pocket knife and cut a bit of insulation away from the black, and the gray/black wire. Don't cut the wires! Just skin some insulation off, so you have some wire to solder to. Wrap the negative lead of the capacitor around the gray/black wire, where you stripped it. Wrap the positive lead of the capacitor around the black wire. Solder the leads to the wire. Wrap tape around each lead so they don't short out. Put your car back together. Now, when you start your car, the ASR will be disabled, the light on the dash will be on, and you can peel out of your driveway. If you put your key in the ignition, turn the car on (not started), and wait longer then the delay time (5 sec) before actually starting, then the ASR will be turned on, the light will be off, and you won't peel out of your driveway. When the ASR is off, pushing the ASR button immediately turns it back on. When the ASR is on, pushing the ASR button turns it off, after the delay time (5 sec).