Just wondering what the correct unit is supposed to be and what it exactly does. Another issue, I've got rear o2 enabled in mods and I'm not getting any rear o2 voltage in evoscan to log fuel trims. Another issue is that I can't get horspower and torque to read in evoscan. I change the formula from another post and now I get somewhat of a horspower reading but under torque is says "NAN". Much help would be appreciated. I also have the 2byte high/low bit patch. How does that work in conjunction with the 2byte to 1byte load in tephra patch?