Use lambda, otherwise AFR will be incorrect unless you used fuel with a stoichiometric ratio of 14.7.
Lambda is independent of the fuel's stoichiometric ratio.
e.g. in each of these cases, when the wideband read stoich it will report lambda as 1.00:
- E00 = stoich 14.7
- E10 = stoich 14.2
- E85 = stoich 9.7
lambda = AFR / stoichAFR
or
AFR = lambda * stoichAFR
Ohh Okay I see what your saying!
2007 5.3l Tahoe. K&N CAI, Pacesetter LT/ORY no muffler, vette servo, Tru-cool 40k, Innovate LC-1 wideband, 3.42's Circle D 3k, 100shot
Slowly learning how to tune via EFILIVE