Quote:
Originally Posted by Zebster
It's running lean. Could be a dirty MAF sensor?
The stoichiometric air:fuel ratio is 14.7:1 (by weight). By measuring the unburnt fuel and free oxygen your car's ratio can be determined, then compared to the stoichiometric ratio to give the lambda figure. In your case the air:fuel ratio is 1.04 x 14.7:1, so 15.288:1
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The calculation is interesting to know.
Thanks for that.