when I was at WSID the other week thats when mine went apparantly.
Allof a sudden around 3rd gear the profecII flashed red and beeped also.
The highest knock I got on that run as low 30's
I got mine back the other day, given it a drive to mum n dads today and watched the boost gauge and just wastegate sat flat on 14psi, low boost on 16psi so, so far so good with mine.
Hope everyone elses is a simple fix too,
Cheers,
Chris