Quote:
Originally Posted by sleeoffroad  On another note, what is your long term fuel trim in closed loop under most driving conditions? Have you ever had a truck measure on a gas analyzer to make sure it is not running lean by checking the NOX readings? You can still be running lean, without tripping codes or having check engine lights. |
If my truck was running lean It would have shown up in the o2 sensor reading in the datalogs and my mileage would be better.
I still get only 12 mpg....