E90 330d ‘increased emissions’ P3263

[Danxr46]

Hi everyone

Just a quick post to see if anyone had any experience with this. As above I have got a error for increased emissions and when reading with a generic code reader gave the P3263 code.
Originally there was a issue with the egr pressure converter as it was making a odd noise and this wasn’t replaced until after the emissions error came up. It didn’t solve the issue and took to a garage who plugged into a more sophisticated code reader and came up with egr. They reset and light didn’t come up until two days later and I was braking. I’ve replaced the egr and the error has now come back on the day after.
Any ideas ?
Any help much appreciated.

[Elliot2000]

We’re the vacuum pipes fitted the correct way on the pressure converter?

Vac pipes can also collapse internally when they get old - might be worth running a new section of pipe.

Do u have a good vacuum supply to the pressure converter

[Danxr46]

Hi thanks for a reply.
I made sure I put the pipes on correct way as quite tight in there.
When taking off they were brittle but I haven’t changed any vac piping but have bought new.
Not sure where it comes from tap off wise other than two into converter and one into the egr diaphragm.

[rsofronici]

Dan, Did you get this resolved, and if yes, how?

Thanks