I've messed with this thing all morning and it's starting to piss me off. :x I get a mV reading through the PCM, but it doesn't move away from .445~.455mV. Meanwhile, the real NBO2 is reading correctly. I've tried adjusting the LC1 settings w/ high impedence, w/out high impedence, .550mv=14.3 & .350mv=15.1, etc. I can't get it to read anything but .450ish. Is it possibly wired wrong? I've got the analog gound connected to A, analog 1 connected to B, heater ground connected to C, and 12v heater power connected to D. Am I missing something??