Hmm... i drove it around more today, the gauge actually reads all of the -0.xx digit readings but once i actually hit anythnig over 0.00 it stays at 0.00...
For mods I am running 3.5" ddp, 3.5" test pipe, a full 3" catback, intake, brand new plugs, brand new wires on a very low km JDM 7M...