Yes, I will go to modify the AFR ratio in my engine, but in the meantime, I store all interesting documents that they me able to serve to me.
three of this you can see at the address below.
http://cafee.wvu.edu/Assets/Document...s%20Engine.pdf
http://www.bosch.se/content/language...58_till_60.pdf
This link, is about the LSM-11 lambda sensor with a range of Lamb > 1.0...1.5 (for special applications up to Lamb= 2.0)