OK then....
It's going into CL, that's good.
LTFT's are positive, but STFT's are -ve, this is why we need some log data. It may be nothing, but who knows.....
It might just be the final ratio change that's causing issues though. If you have gone from 2.77:1 to 3.39:1 and not updated the transmission calibration to suit, then it'll be shifting at the wrong places. It may be locking the TCC too early and making the car labor a lot more, causing it use more fuel.
Simon
I flashed the TCM to an SRX file which is the only 2wd version that runs that gearing. That made a world of difference. The transmission cal fixed the speedo.
But does the ecm need to know the final drive ratio to calculate load?
With the e39 controller it won't let me read AFR wil it?
One more question. On my 2009 silverado if I use e-85 it gets 13 mpg, If I use e-10 I get 15 mpg, If I use regular gas no ethanol I can get 18 mpg. On this Terrain it makes no difference with e-10 or regular gas. It isn't flex fuel so I haven't tried e-85. How can it tell the difference?
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