- Messages
- 1
- Likes
- 0
- City
- Yorba Linda
- State
- CA
- Country
- United States
- What I Drive
- 2008 Volvo XC90 3.2 FWD
My 2008 Volvo XC90 (FWD, 3.2) has developed a problem. I was driving and it suddenly felt sluggish, rough, and had a check engine light. When I got home I plugged the OBDII scanner in and it read "P0304", which I found out means a misfire on cylinder 4. So far my guesses are a faulty ignition coil, bad spark plug (Haven't changed it in a hot minute), or a dirty fuel injector. How do I diagnose the problem properly and how can I fix it?