Hello! new to this forum. i bought a volvo s80 D5 2007 6 months ago, and now it wont start from time to time.. seems random when it starts and when it wont. i bought a simple obd2 reader for volvo and got a few codes:
CEM-U030100
ECM-U032200
ECM-P210114
ECM-P160948
The throttle actuator one i've swapped the actuator itself ( the old one was missing some teeth in the mechanism) to no avail.. when i try to start and it wont start i get a low reading on fuel-pressure..
Also i tried refitting every connector i could find. im losing patience here, does anyone have any ideas what to look after next?
sincerly, a happy Volvo owner in general

 

Update: i now see intake temperature is 75⁰c on cold engine, tried unplugging MAF but still same symptoms

 

Sorry to say but my post from 2 weeks ago still has 0 viewers, let alone any feedback. Try other forums

 

I think swedespeed gets more traffic, also not a lot of experience with the Euro-spec(diesel) volvos in these forums. Mostly American here.