A4 2.5tdi, still overboosting, changed boost switch on intercooler, boost vacuum sensor, vacuum pump, replaced all vacuum pipes with silicone items, removed turbo and cleaned(all vane operations working correctly), only thing not replaced so far is actuator.
Initial boost under load goes over 30psi, then dumps a load and settles at approx 18psi, which is still probably high.
Any ideas what standard boost level should run at?
And any ideas what could be causing it.......
Although i must admit its quite a nice boost when it comes in