I’ve added a couple of posts about the fuel economy guage recently but in those posts I left out the fact that I already had one device on the ODB-II port of my 2008 Chevrolet Impala – a Zubie vehicle monitoring device that is cloud-connected via its own celluar connection (the one at this link is slightly different from the ones that we have; they are both white and were also purchased as a two-pack – I don’t know if there is any technical difference between the models).
In order to solve this issue I decided to purchase a iKKEGOL 30cm/12″ ODB2 ODB II Splitter Extension Y J1962 16 Pin Cable Male to Dual Female Cord Adapter. I’m not sure why the item name is written as ODB2 ODB II as it should instead be OBD2 OBD II but it does work properly. I read several reviews before deciding to purchase this devices as I was uncertain whether or not having two devices connected in this way would cause issues. I decided that it was not very likely to be a problem because the fuel economy guage only reads from the system and the Zubie device probably rarely ever sends data, if at all.
I haven’t had a single problem with either device since I connected them to the splitter.
The white fabric is actually an elastic material helping to ensure that the connection to the OBD-II port doesn’t slip loose. Normally, the cables are tucked away better but I had just shifted them before taking this cable to reposition the fuel economy guage.
Update 04/18/2018: Using the splitter with these devices worked great and didn’t seem to cause any problems with my vehicle.