So I added a bit of engine oil the other day and then the CEL came on with a code P0171 - System too lean. My car is a 2005 s40 2.4i with 160k miles.
I thought it may be the oil filter housing acting up, although I've read this isn't too common on 2.4i engines. I also didn't feel suction when opening the oil filler cap.
When taking apart the air intake, I noticed the oil dipstick was not pushed all the way in. Damn whoever was in there last (that would be me..)
Pushed it back in, cleared the CEL, and everything seems to be back to normal.
Anyone with some more insight? Could this be an early warning of PCV issues? Should I replace the oil filter housing sooner rather than later?
I thought it may be the oil filter housing acting up, although I've read this isn't too common on 2.4i engines. I also didn't feel suction when opening the oil filler cap.
When taking apart the air intake, I noticed the oil dipstick was not pushed all the way in. Damn whoever was in there last (that would be me..)
Pushed it back in, cleared the CEL, and everything seems to be back to normal.
Anyone with some more insight? Could this be an early warning of PCV issues? Should I replace the oil filter housing sooner rather than later?