rs2 overboost

[dobbin]

came to work this morning in and my rs2 is overboosting every gear 2bar should be 1.8
mrc chip set im in work now , checked waste gate all ok . im thinking small hoses to ecu leaking ?

[Rusty]

N75 stuck closed?

[dobbin]

had a spare valve in car changed it dinner time still same

[Rusty]

Have you got a vacuum tester (hand pump)? Might be worth checking that the diaphragm hasn't split in the WG and that the WG isn't stuck (remove the top and check the piston goes up and down).

Also worth checking the hose that goes n75 to WG isn't crimped or damaged.

Have you changed anything recently?

[dobbin]

update

if you remember i had a boost problem would not go over 1.5 bar with a 1.9 bar chip set.
so took it to tom who said it was the wastegate spring faulty. so he fitted a 2.2 bar spring and removed the perch inside the wastegate and set it up to run 1.8 bar with mrc stage1 plus chip set. so last night i fitted the original spring and perch and set it up to std setting. now car only boost to max 1.5 bar. can't work out why boost would creep up to 2 bar/2.2 overboost . so it looks like i need a good rs2 std spring
or 1.9 bar spring and modify the wastegate again . audi don't sell the spring on its own

hopefully someone on here can help