Morning guys. My vrs pd (bmn) recently had a turbo fitted by a bunch of absolute cowboys, recommended by a 'mate', and it's not been great since. I had to spend a few quid getting a few issues put right over the last year, not the best job I've ever had done. The latest one is 14psi of boost (should be 22 odd) and slow, jerky progress. The main symptom is I have to suck really hard on the actuator pipe to get the thing to bottom out, I'm thinking sticky vanes? I'm pretty sure the slightest vacuum on there should move it all the way? Sticky vanes on a brand new (shiiiiiiiitttte) turbo bodes well doesn't it?

Try disconnecting the actuator rod from the turbo.

 

There is a really small circlip that holds it on, once removed you should be able to release it.

 

Try your actuator hose again to see if you can get it to move, if so then your vanes are stuck, if it doesn't move then your actuator is toast.

 

You can also try to move the little lever that the actuator rod was attached to. This should give you more info on what the problem is.

 

If your vanes are sticky then I would recommend the Mr Muscle procedure. Its fairly straight forward

 

PM me if you get stuck

Extra note: the standard turbo is a GT1749V i think and should make around 24 psi in standard config. 

 

A standard remap will increase this to around 26/27 and if you want to go a bit higher the turbo is capable of hitting about 28-30psi. To achieve this you have to wind the boost limiter screw in all the and take lots of length out of the actuator by undoing the nut and turning the bottom end of the rod so it gets shorter.

 

Fairly simple to do, all you need is a tiny allen key (cant remember the size) and a 10mm spanner