Boost problems
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Joined: Nov 2015
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Boost problems
Hello I have a tt 1999 apx 225 Quattro
I have a boost issue it will only give me 0.3 boost I've changed the n75 valve turbo catridge and checked that the recurc valve isn't stuck, every now and then I will get no boost at all 0.0 on the gauge, anyone got any ideas please as its getting close to petrol and match time lol
Cheers
Al
I have a boost issue it will only give me 0.3 boost I've changed the n75 valve turbo catridge and checked that the recurc valve isn't stuck, every now and then I will get no boost at all 0.0 on the gauge, anyone got any ideas please as its getting close to petrol and match time lol
Cheers
Al
AudiWorld Member
Joined: May 2016
Posts: 128
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From: NC
If you havent changed the turbo guts, it would be a good quick check to pull the intake off the turbo and make sure the compressor wheel is spinning freely. I had a volvo doing the same thing, and come to find out the compressor would barely spin.
Next, I would be testing the waste gate diaphragm, to make sure its operating properly. Sometimes the wastegate could be getting stuck open, or being pushed open if it has a weak spring.
Normally, I would suggest doing a boost leak test, but your car would give a p1297 boost leak code if it had one.
Hope this helps, Connor.
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