What does this do?

[lumac999]

Hi,

What does the ball part do in the photo? Is it connected to the vacuum? Thinking this may have something to do with lost vacuum and limp modes.

Photo curtesy of mbames - sorry it was easier than taking my cover off etc...

[felicia16v]

tis the vac resiviour to store vacuum in should have a vac line to it from the pump

[lumac999]

Thanks

[rwbaldwin]

If the reservoir is leaking (especially if the leak is intermittent), it can cause problems with boost control.

Also make sure that the pipe circled in green is not blocked and gets put back on the airbox fitting. The N75 is a changeover valve. If the pipe is blocked/restricted, the vacuum capsule on the turbo will be slow to return.

[mbames]

Photo curtesy of mbames - sorry it was easier than taking my cover off etc...

Spooky... I looked at that and though.... "oooooh, someone has same things on their keys as me.... and aero wipers. Oh, hang on that is my car!"