[elbutio]

Hi I posted this a long time ago but didn't really get a reason for this. I have a 58 plate 330d lci and have dis/cable etc and understand how to use it. My back pressure shows as -1000mbar when tested at whatever rpm, Someone said it does this on an LCI? Why?? And how do I find out correct value??

My initial instinct said it's been gutted but the one previous owner said nothing about this, it also seems to regen OK.

Car has done 187k motorway miles and I have no issues, the reoccurring codes I get are:

452a - limited remaining distance of dpf which I understand flags up as replacement reminder and not on idrive like pre LCI? Remaining distance is 48k when looked up.

5c5e - dpf minimum differential pressure undershot-fault currently not present. This suggests to me it's the opposite of blocked/ been gutted or sensor is shagged??

Any more information greatly appreciated, especially from Steve if he's about

Cheers