Quote Originally Posted by Wheelz View Post
Close. It is a reflection of the stoich for your fuel. If your tune is set correctly then yes it is a reflection of your commanded AFR, but if your running e85, lambda of 1.0 will be 9.something AFR even if your commanding 14.67in your tune.

But yes on that the lambda output from the LC-1 is stoich for whatever fuel you are running. It is your job to know the stoich AFR of your fuel and command it appropriately.
If I am reading between the lines correctly, then the LC-1 wideband (when reading lambda) can tell when the car is running stoich, regardless of fuel/ethanol percentage?
Lets say I use the LC-1 in a car that has a good tune for gasoline, it will read 1.0 lambda at stoich (14.7). Then I take the LC-1 out and install it in a car that has a good tune for E85, the sensor will read 1.0 lambda at stoich (9.0)?