Alright guys,
I've done some reading on the LC1 and interfacing it with my HP Tuners EIO and it seems most of the problems with it are related to grounding. Both cars I'll be tuning with this have 4 gauge wire between the battery, chassis and block, as well as several 10/12 gauge drops around the dash/engine area that are tied off of this grounding "backbone" (I have electric gauges and like consistent readings). My PCM and sensor grounds tie to these, as does my OBDII port.
Is there any reason I cannot ground all my LC1 points to this grounding system? I read their instructions stating that the heater circuit needs to be grounded away from the data grounds. Is there noise induced from this or are they just worried about it pulling inadequate grounds up? My setup should certainly be able to absorb this anyway, but I can always isolate it if it's that big of a deal.
I've got a few years of EE schooling and a lot of years of hands-on, and the problems everyone seems to have with these units just seem unfounded to me.. am I off base here?