M119 lambda / O2 sensors and HHT-Win

[R129 UK]

Do M119s have upstream or downstream (or both) Lambda sensors?

Is the output of the O2 sensors viewable with HHT-Win or a DVM?

I have a vague recollection they can be seen in HHT-Win but I'll hopefully check for sure tomorrow when I get a chance to connect my new kit to my car.

 

[gsxr]

Do M119s have upstream or downstream (or both) Lambda sensors?

LH-SFI cars have a single sensor, upstream only (pre-cat).

Is the output of the O2 sensors viewable with HHT-Win or a DVM?

HHT-Win shows live O2 sensor voltage. Video / screenshot below.

Not sure if the voltage is easily viewable with only a DVM.

 

[R129 UK]

Thanks Dave, I was hoping to follow up with some pearls of wisdom on Lambda and Stoichiometric combustion plus open and closed loop controls for the guy in the other thread but this has now been split off on its own so the relevance to misfires is now lost I feel.