IFFV68
Well-Known Member
Excellent ,it's 3 icons together. the top is an arrow, with the stem being funneled in, likely to represent air being funneled into the intake. the middle is a slash, to represent division. the bottom is a beaker of some kind partially filled with a liquid, in this case safe to assume fuel. the order of the icons makes sense because air fuel ratio = air mass divided by fuel mass
It makes sense if you have a PHD in Greek.
You may want to write a book

Thank You.
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