Apexi Avcr Question

[viking]

on the boost/duty screen i have set 1.00kg and solinoid suty 65%. when i take it for a run on full throttle the solinoid duty hits 90% max and flutuates in between sportatically. its not in self learn mode so it shouldnt be doing that ( i dont think) . its only just happened recently. i have done many runs on this setting and it was fine , the solinoid duty was set on 65% and stayed on 65%. boost pressure is fine .98 max and stable.

if some one can shed some light on the charateristics of the avcr would be much appreciated.