Most of the auto tuning ecu I believe just build a base map off your wideband, then after its complete your just running on that. I'm pretty sure thats how most of them are, I know the aem is like that. You hook up your wideband and the ecu uses that to create the map when ever you request it



STEPHEN

 

yeah that's what i was saying earlier, it's best to use sem-closed loop tuning to get a basemap to run off of. but what gordon's saying is he want's the 02 sensor to be constantly tuning a/f ratios at all times.