Are my Toyota's fuel trim values altered by city driving?
Vehicle is a 2011 2.5L Toyota Camry with 62,000 miles. My LTFT reads -.7 operating in closed loop. This car has been cranked and driven short distances for years. No engine work has been done or needed so far. Oil/filter/fluid changes performed as Scotty recommends.
In colder months where I live, after short trips the car's never fully warmed up. And this is typical of the many short trips I drive. It gets the old Italian tune up once a month. Right after my last one I pulled out a scan tool and took these readings: no codes, but live data using a Blue Driver has STFT range between +1.6 to +2.3 and the LTFT is -.7
Scotty's always showing fuel trims near 0 w/cars having 100s of thousands of miles in his videos!
Would constant city driving (in open loop) skew the results of my "Live Data"?
Do these fuel trim values look OK?
Thanks in advance!
Your fuel trims are fine.
Thank you yaser. As I learn as much as I can about diagnostics, I still get confused sometimes..
I found this article about fuel trims a few minutes ago it was very helpful: https://trade.mechanic.com.au/news/understanding-short-term-and-long-term-fuel-trims1
You're welcome. Thanks for sharing the link.
STFT range between +1.6 to +2.3 and the LTFT is -.7
you're fine. Don't worry about it.
