I guess Ill be ordering a GDP soon im tired of clearing the code. Got a new tank of diesel today and flushed the cannister and havent seen the code since and ive made 3-4 passes at full power. So maybe the filter was to blame.

 

I've seen a filter make a difference for a little while, I will be curious to see if the code starts to reappear after a short period and the filter getting used and dirty.