If they're checking oxygen content they will be harder to fool.
I thought maybe they might work on a temp differential,but i gotta admit,i'm behind the times on these new ones,lol.
This is the first computor toy i've tinkered with since my old Regal,and it was 10 years ago since i was playing with it,things have changed somewhat since then
Do you know who's exhaust is that in the picture?
Somebody done a nice job on that system