[Fabmex]

Hello all,

I have several issues on my 330i that I have troubles to resolve. It semms like one of those neverending story. I am not even sure if all is more or less linked to one root cause or if I have an accumulation of smal issues that have now made my engine run very bad.

The big starting point that made me start look into how y engine is running is an issue yet to be resolved. Cold start of engine is ok, it starts without trouble. Then I drive a little and I ave some hickups at low speed, if I rev a little more and pick up some speed it disappears. Then after a short drive, if I have to stop at a shop or something for a quick buy, when I come back it just won't start.
I had to wait more than 15 minutes on a parking lot for it to start back.

I looked at the error message and had 2A2B and message on both Nox sensors before cat. So I changed both of them, and took the time to change the oil cover gasket, because engine was leaking and I found oil in a couple of spark plugs. So I thought I had it all.

But no, not at all, it continued with no much change except the error of NOx sensors had disappeard. I continue with the same issue.
Errro codes had disappeared a while, so I tried to change Variable Valve slenoid, because mine seemed a little tired from the diagnosti shown on the web I could find. And again no change

Yet good news error code poped out to work on, 2A2B is back again and this time I have 29DB Smooth Running, Segment time measurement

So ere I am, I have a car I can't really use because it is not running smoothly at low speed, because I always fear I have to stop and cannot start back, and only explanation I have are those two messages 2A2B and 29DB.
At least it seems coherent to have those messages as they seem to decribe my issues but I would like to have some help to find what would be the solution to this and have my dear engine back.

Many thanks for your help if ayone has an idea