Wide band oxygen sensors and controllers are a difficult bunch of products to figure out. Some sources I’ve read claim that I don’t need one and shouldn’t spend the money on it. Other sources say it’s absolutely necessary if I am to achieve a decent tune. Also a wide band O2 sensor can lead to closed-loop control which helps improve economy for cruising.
Strangely, the MegaSquirt products only support narrow band O2 sensors natively. Otherwise, you have to have a separate controller for the wide band sensors to work with the MegaSquirts. There used to be a DIY board available but it seems to have fallen by the wayside. Now the main two options that are available seem to be the Innovate LC-1 and 14Point7. The 14Point7 would end up costing less although there seems to be more readily available support for the Innovate LC-1. Also the LC-1 is a smaller package that would more easily be installed and appears to be weatherproof. On the high end, I will be out $209. On the low end, about $150. Is the extra 50 or so bucks worth the DIY AutoTune support? Also there are a lot of people using the LC-1 successfully…