I'm new here, but hoping to build a relationship on this forum as I have on many others over the years.
This is the newest most expensive car I've ever owned so it'd be nice to help keep costs down and research myself where possible.
I feel that my car is a touch down on power - an a4 130tdi beat me off the lights by a long shot the other day.
I had some kit on board but not masses.
I've an E91 177bhp LCi model 320d.
I've read the fault codes and this is one I get:
452A DPF System 4530 Boost Pressure Actuator - Regulation Pressure too Low
The other 2 are an unknown one and a glow plug.
What does the above mean, as I can't find a thing on Google - DPF been removed? Or broken / faulty?
Would this effect power, and if not, what parameters do I need to check (using Carly / BmWhat) to confirm temps, maf/map sensors and so on?
I'm beginner at parameters and don't understand the, much but I have the app so I can check them.
I just find the car a little more sluggish, especially lower down the Rev range.
Thanks in advance