ok, we know that there are two active fuel trims on the Evo, but the most recent version of AP/ATR only allows logging of "LTFT". Kind of a bummer that it only allows logging one of the LTFTs, but worse yet is that it doesn't specify which one it is. Anyone know which long term fuel trim (idle or cruise) is logable with the Access Port?

 

It's actually the "Current LTFT". It will change from idle to cruise at normal crossover points.

 

MUT50 is "Current LTFT" thats the prefered way..

The old MUTS still work as well.

EvoX has 3 trims... See my LTFT disable thread...

 

Cobb logs "LTFT_InUse"... the one located at MUT50.

It is the currently used trim, so when you are idling, you will be logging the idle trim and when you are cruising, you will be logging the cruise trim. If you let of while going down the highway, you will see the trim flop from one number to the other, and then when you give it gas again, you will see it hard flop back.

 

Wow, lets just all reply at once. LOL

 

LTFT 1.78v and below = idle, 1.8v and above = cruise on the Cobb if my memory serves me correctly.

 

ok, thanks all.