Carly Community
milastar8
4Runner rough running poor MPG
4 comment(s)
milastar8 (Author)
Yeah, mileage tanked! I am getting awful fuel economy all of a sudden. Air filter... hmm, it's been a while, I guess. What exactly do you mean by 'rich running condition'?
marioschulze24
Rich running means your engine's getting too much fuel compared to air, which isn't good. Given all the symptoms, I'd suggest getting your fuel injectors checked. A defective injector valve could be the culprit. It's best to get it checked in a workshop.
milastar8 (Author)
Thanks a lot! Okay, the 'rich running' thing makes sense now. I took it to the workshop, and they said I had a defective fuel injector. It cost me 515€ to fix, but it runs like new now. I appreciate the help!
Join the discussion now:
marioschulze24
Sounds familiar! I had similar symptoms on my 4Runner - rough running, check engine light. Has the fuel economy dropped off noticeably? When was the last time you changed your air filter? A dirty air filter can definitely cause a rich running condition.