lossing boost

[KCP]

hi can anyone help I keep losing turbo boost on my car first time it happened it was a hole in a pipe then it was the n75 valve that I replaced with a new one now its doing it again im thinking of replacing all the pipes with silicon ones and hoping that will sort it does anyone know if it could be anything else 

[davidgtrr34]

is it hitting good boost and then dropping very fast or does it drop slow.
14 psi is all the map sensor will let you get and then it will drop boost to around 3-5 psi

[joshstanvw]

just for your piece of mind check check and check again all your boost piped i had a hideous issue when my charge pipe disconnected itself whilst overtaking a lorry it just sounded like a massive whooshing when it wanted to boost and when you sat still and gave it a small rev it sounded like it had a badboy blow off valve lol (embarrassingly it took me 45 minutes to find a pipe that was completely disconnected)

[Wazzzer]

Actuator?

[KCP]

hi
 some days it works fine other days it just was not there I have changed my pipes for silicon ones and I think it has done the trick
 

[KCP]

how can I tell how much psi I am getting?

[Wazzzer]

what engine code do you have? Easiest way is a boost gauge although on the models with a MAP sensor you can read it off VAG COM

[KCP]

its a AGU is that what you mean ?