Wanted to open some dialog on adjusting tunes so that when one is running high flow cats, it doesn't trigger a CEL. Specifically this is for codes P0420 and P0430, Catalyst Efficiency Below Threshold.
Basically these are triggered due to the amount of o2 readings downstream reading too close to upstream. I haven't looked within HP Tuners to see where one may set the threshold for these values or if it exists. I believe if this exists we may be able to eliminate the need for running foulers.
Thoughts/ideas/recommendations much appreciated.