MicroSquirt.com read only forum (Jan.15,2018)

I'm currently getting ready to start an EFI project on a snowmobile. The vehicle I'm thinking of using comes with dual exhaust it possible to run a wideband O2 sensor in each exhaust with microsquirt? I've done a quick search of the forum and couldn't come up with anything.

Thanks,

Yes the spare ADCs 6 and 7 (pins 29 and 5 on Ampseal) have multiple uses as follows:

// - AN6 is Spare or BARO (BaroOption =2) or EGO2 (EgoOption = 2 or 4)
// or MAF (MAFOption >= 2, MAFPin = 1).
// - AN7 is Spare or KNOCK or MAF (MAFOption >= 2, MAFPin = 2) or
// EGO2 (EgoOption = 5 or 6).

So you can put the second O2 sensor on pin 29 or pin 5, unless you are using something else on either of those pins.

I was toying with the idea of using a MAF if I do this I limit myself to a single o2 sensor correct? The muffler collect into a single silencer could I mount the o2 sensor in there or is that too far away from the engine?

You should still be able to use both. EGO2 could be on ADC6 and MAF would be on ADC7.