im about to get the PFC and have a few questions about dyno tuning it. first off, do i have to run the wideband O2 at all times or can i use my bosch 11027 O2 for daily driving and swap out for the wideband at the dyno. okay, i guess i only had one question.
kris

 

You only need to use the wideband for tuning the maps. When you drive, the ecu only looks at the 02 readings for light throttle, low rpm situations. Under heavy throttle/high rpm it resorts to the pre-programmed maps. Which is why you have to get an upgraded ecu when running more boost.