View Single Post
Old 07-11-2019, 10:27 AM   #7
Board Member
IansPlatinum's Avatar
Join Date: Jul 2018
Location: Texas

Originally Posted by JohnMc View Post
It's reading the O2 concentration, which doesn't change based on the velocity.
I thought they measured relative amount of oxygen compared to outside gas.

Originally Posted by JohnMc View Post
If you take tiny samples of air and analyze them in clear air or buffeting around behind a semi, they're both going to test the same.
Sure, for concentration, but overall amount is less, just like it's harder top breathe in a mountain range because the air is less dense. Replace the human in this analogy with the O2 sensor. The O2 sensor will say there's less O2 in the mountains compared to sea level, even though the O2 concentration is the same. Or at least I think.

Not arguing, just thinking out loud...
'96 854 Platinum - "Trusty"
'92 245 - "Boat"
'71 145 - "Rusty"

'73 1800es - "Sunny"
'92 940T
'98 S70 T5
'99 S70 GLT
IansPlatinum is offline   Reply With Quote