Does anyone know where I can find a calculation to convert afr into a lambda figure. I have a wideband that reads as AFR but can only find refrence to AFR as a lambda. I know that 14.7:1 is lambda 1, but what else??

Altenatively can anyone tell me what I should expect to see under full throttle? Does anyone have any graphs of their cars AFR under full throttle as an AFR rather than a lambda.....

Any help appreciated.

 

I think it goes that if you had lambda of 0.8 then multiply by 14.7 for your AFR and so on.

George

 

AFR's vs Lambda can be found here.
http://techedge.com.au/vehicle/wbo2/wblambda.htm

Seems to be as George says. Lambda x 0.8 = AFR for petrol