Hello! I just bought a 2006 xc90 134 ××× miles on it, got these codes P0300, P0305, P0304, P0089, P0027 does anyone have encountered any of these? How you troubleshoot them or fix them ?
car lacks of power on Drive, not so much on idle.

 

Ouch, two misfires and fuel pressure regulator code. Have you tried cleaning out the fuel rail/injectors?

Edit: And exhaust valve solenoid. I'd hit up a salvage yard and grab all the parts I could, clean them up and swap them out.

 

I was thinking on cleaning the injectors, where is that exhaust valve solenoid? I'll be working on it this Sunday afternoon.

 

I was looking around and you might want to check if your oil filter is clogged.
What engine do you have?