I just love reading all the video comments from all the d*ckheads who think they know how ALS works. Really creases me up. Why open your mouth and spout crap if you don't know what you are talking about. ROTFL!!!
We used to run a Darrian rally car which had a lambda sensor fitted for mapping, which was then removed. Couldn't find a blank with the right thread, so I fitted a spark plug into the boss instead. I just had to put a lead on it, and tape it into the loom. It was an endless source of amusement listening to folk trying to work out what it did. I used to tell them it was normally aspirated ALS, and walk away trying not to laugh!!