P0171: System too Lean (Bank 1)
P1310: [Chrysler] Ignition Coil 3 Primary Feedback Circuit

P0301: Cylinder 1 Misfire Detected
P0302: Cylinder 2 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0305: Cylinder 5 Misfire Detected
P0303: Cylinder 3 Misfire Detected
P0300: Random/Multiple Cylinder Misfire Detected

I replaced my Cap, distributor,wires(Bosch), spark plugs(OEM). I am not a big fan of the Bosch spark plug wire set. I will get Borgicord/volvo ones but dont have the money now for the ridicioulsy high price.
Oil change with euro formula 0w-40 Mobil 1 and Bosch oil filter 1 month ago. I know I know, I will use Mann filters but I could find local. It does get really hot in Texas right now.

Would should I do to clear these codes?
This Vacuum leak(p0171) is eating alot of gas. I did the PCV replacement ritual that all DIY 850 owners must do to make the car run.
I have less power when the tottle is down.
I also do have a consistent oil leaks as well. Been cleaning my engine the best I can but I hate getting under the car unless I have too.

Any advice would be greatly appreciated!!
I have several write ups I am going to post of some my repairs to help this community of volvo heads alive

 

why did you use 0-40?