[Filters & Oil] DPF Issue or Fault Elsewhere??

[ntm1275]

Never had any issues with my DPF as my drive to work is always at least 20 miles and the same home.

Couple of days ago after filling the tank to the brim, I got back in the car and the dash lit up with "Info. Risk of Filter Blocking" with a warning triangle on the instrument cluster.

Since then I have hooked up Lexia/Diagbox and looked at the DPF information while the car was running to see what condition the DPF was in.

Particle Emission Filter Load was at 11% and the Exhaust Differential Pressure was 0 at idle.

After looking at various Citroen/Peugeot forums trying to find a possible reason for the message I'm getting, I have determined that according to the 'filter load' and 'differential pressure' reading that the DPF is working normally.
If it was seriously blocked, the 'load' reading would be in excess of 80% and the 'differential pressure' would be at 20+ at idle.

So I'm now thinking that this message is not related directly to the DPF, but that a sensor might be giving the wrong reading or has failed and so is saying "this could caused the DPF to get blocked".

The Eloys bag is pretty full, so it's not that, but since it was running perfectly until I filled up the tank, could it be the sensor which detects the opening and closing of the fuel flap (to inject the Eloys) has failed and so the Eloys is not injecting in to the tank.

I have run a Global Fault check in Diagbox and there are no faults.

If anybody has any suggestions before I take it to my Citroen dealer, I can then be armed with a bit of information before paying out for part after part after part until the message is cleared.

Any help would be gratefully appreciated.