Question about 2001 Audi TT
I have a 2001 audi tt 1.8L turbo. The tach stop working. What can I do to troubleshoot the problem.
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Posted on Jan 02, 2017
If you are shuddering, it's the MAF or bad spark.
If you have no boost, it can be many things.
-Bad MAF (ebay has them for us$90, just make sure you get the exact p/n)
-Bad wastegate controller (N75)
-Bad wastegate actuator (the actual wastegate valve, or the vacuum controlled plunger)
-Bad or stuck Blowoff/Diverter Valve
My TT just had the weirdest of "no boost problems". it would throw a code, saying the wastegate was stuck open, and i would have no boost. If I disconnect the battery and reconnect after 5 minutes, i would have full boost; and everything would work great for anywhere between 20 minutes-10 days!
It turned out to be a dirty Boost Pressure Sensor (aka Thrust sensor). It is a $130 part. I finally found the location of it on my 2001 TT Quattro (AMU), it's just below and in front of the battery between the driver's side intercooler and the intake manifold, connected to a hard black plastic intake pipe. It is held on with 2 silver-colored torx screws. It has a connector that gets plugged-in facing the passenger side of the car. Once you pull it off, you will see it has a funnel shaped tip. I took it off the car and poured isopropyl alcohol (99%) into the inlet hole on the funnel shape. I shook the alcohol around and then shook it out. I let it dry, put some silicone grease on the seal, and hooked it back up. The car has been working great so far. If it starts having problems again, i am just going to throw in the $130 new part, and hope for the best.
Posted on Nov 06, 2008
SOURCE: Audi TT fuse box
It is in the end of the dash board. open the drivers door so you can see the end of the dash and ease the semi circle shaped cover off. There is a fuse pulling tool in there too ;o
Posted on Mar 09, 2009
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