So I have playing around with my BlueDriver, and the truck's been running good lately. I noticed that the LTFT % is in the negative for both banks. (at idle) They are still roughly the same if I drive 3 miles to the office and still around the same after a long hour country road drive. According to a ScannerDanner video, he says anything +/- 5% is nothing to trip on, but these are a bit past. So it seams like the CPU is cutting back on fuel. Any ideas? Normal? Pressure regulator? TIA.