Anyone run into an issue with using an OBD2 splitter for a display monitor and tuning? My better half is getting me a Edge Insight CTS3 for Xmas. Right now though I am tuning my rig with HP Tuners and I have my old Mini-Maxx I want to use for a monitor. The problem I run into is when the H&S is hooked up, my MVPIv2 won't connect to the ECU. I haven't sniffed the bus, but I am guessing the H&S is reading the PIDs and locking out the protocol while it is connected. I have tried two different splitters and have the same issue. Is there one that has a sort of write block in it where the H&S can just sniff the traffic so I can have both connected at the same time? Will the CTS3 do the same thing?

Thanks
-Muzzy