I've got a 17964 code that seems to be causing limp mode under full throttle in fifth. Vac pump tested to 25" hg, everything in the system holds vac EXCEPT the N75 valve, which will slowly lose vac even when isolated. Standard test in Vag Com leads me to believe that the VNT actuator is functioning properly (3/4" movement when called, starts moving at 3-5", stops at 18").
Only thing I noted is that you can definitely hear the turbo as it begins to spool. Doesn't necessarily sound like a leak, but I suppose it could be. You can clearly hear it when accelerating with the windows up. Any way to test it other than plug the intake hose and pressurize it?
Any ideas here?
Only thing I noted is that you can definitely hear the turbo as it begins to spool. Doesn't necessarily sound like a leak, but I suppose it could be. You can clearly hear it when accelerating with the windows up. Any way to test it other than plug the intake hose and pressurize it?
Any ideas here?