Originally Posted by Dusty
If you put it there (you can if you want to) it will only be reading the combined AFR of both cylinders, i have found with the LM2 that my F&R cylinders were quite far apart.... front was way lean.
After some changes to the front i have them much more in what i feel is a safe range.
I feel both cylinder need to be read to do a proper tune.
Do you have 2-2 or 2-1 exhaust? Sensors are going to be quite close to cylinders if you put one on each before the 2-1 collector. Maybe too close?