[hightower99]

Originally Posted by revetec

I suppose we were both looking at this the wrong way around. Open loop is usually the optimal power Vs emissions program, while closed loop is a fine tuning for the Cat and the lowest emissions, (instead of the argument that closed loop is the set mixture and a richer mixture in "Open Loop" is used to reduce detonation?) Correct?

I have to say I totally agree.

I think I am going to look at the issue of fueling like this in the future, makes it easier to explain to those that are not overly car-literate.