detroitgrip Posted April 6 Report Share Posted April 6 2009 Journey, 223,000 miles, 2.4 original motor never did timing chain service, original transmission, I keep oil fresh, I've replaced many parts through the years of course. The motor runs great. I've had high fuel trims for a long time (+20 total) so I just recently replaced the intake (had runner flaps code). Now (75 miles after replacing intake) the fuel trims are... LT +20, ST 0 when idling in Park or Neutral. LT +3, ST 0 when idling in Drive. Any ideas why such a difference in fuel trims when in Park/Neutral compared to in Drive? Quote Link to comment Share on other sites More sharing options...
2late4u Posted Monday at 02:11 PM Report Share Posted Monday at 02:11 PM (edited) had to Google fuel trims,,,,https://ricksfreeautorepairadvice.com/fuel-trim-what-the-numbers-mean/,,,,,kind of explained it to me,,,,,,,Hopefully someone will chime in on this as I have never heard this term asked here in all the time I have been a member since 2011,,,,just wondering did your repair fix your problem and what I'd the MPG you are getting as of now,,,hope you can get some good answers here from some of our Great mechanics as well.,,,,,,,,,take care P.S. I believe the 2009 had the 3.5 eng not the 2.4 if I remember right????? Edited Monday at 02:13 PM by 2late4u Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.