The Megasquirt, as it stands, does not include a wideband controller, but with minor mods, can read the output from two widebands (the 0-5v signal)
I have used Innovate LC-1s to good extent, but the sensor that ships with them doesn't last very long. I replaced the one it shipped with after a couple of months of dyno duty, and the one in my daily I replaced after six months. In both cases, after I replaced the sensor, I haven't had trouble with them.
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