Hi guys, im a new member but a long time reader on this forum. I hope you guys can help me understand my data log. I’ve installed a DP and CP 3 days ago and tuned with mhd stage 2. I tried to do a quick pull data logging for the first time and wasn’t even sure if i did it right so please bare with me. I think i didn’t even make past 5500 rpm as the road i was on wasn’t sufficient to do so. I pulled the log and i noticed that my car has made timing corrections on all cylinders and they are all over, i’ve tried reading about it and it seems no good.
So now i need some help with this.
Here’s my car’s background history:
2011 335i xdrive 6spd with 140k km
MHD stage 2 91oct, vrsf dp and cp, muffler delete.
Cylinder head, vanos solenoids, vcg, hg, ofhg has been replaced through warranty roughly about 25k km ago.
MAF and oem sparkplugs, waterpump, t-stat has been replaced 20k km ago.
I believe the coils hasnt been replaced ever since and now on my next to do list.
I don’t race or abuse my car, quick 2nd to 3rd gear wot maybe once or twice a month.
I suspect i’m having the infamous pcv problem for n55 as i can hear chipmunks like sound intermittently when braking and coming to a stop.
Does having a bad coils can affect timing corrections?
Here is my log.
https://datazap.me/u/mackie/log-1544...og=0&data=3-11
Hope you guys can help me. Thanks a lot!
Appreciate it!