Air fuel question

[galoush]

Hey everyone , i have a stupid but simple question .....Rich on an air fuel meter is lower numbers correct, like 10.1 Vs lean as higher numbers like 16.1 or am i off here. 11.1 would be richer than 13.1

 

[Antagon]

Bingo.

 

[mybuick]

yas 11.1 would be richer than 13.1 it should be close to 14.7 and make sure you have NO exhaust leaks at all

 

[Ormand]

The numbers are the air/fuel ratio. More air, bigger number. Less air, smaller number. If you want to look at in terms of fuel, more fuel (richer) makes the number smaller. If the number is coming from the stock O2 sensor, all you can really say is that bigger numbers are leaner. A reading of 15 to 1 might be 16 to 1, or 15.5 to 1- the stock O2 sensor is just not accurate except right at 14.7 to 1.

 

[galoush]

Thanks everyone , im using the Innovative LM 1 . I just wanted to confirm .

 

[ijames]

You have the direction right, but also remember that when we say "lean" at wot, we don't mean lean of stoich (14.7 or so for gasoline), we mean less rich. For example, if you wanted to run at 11.5 and actually hit 12 you would say you "went lean" even though you were still way rich of stoich. Enjoy the lm1; I love mine.