The intended function of the CO dash settings is to enable compensation for manufacturing and flow differences in the EFI system... because all injectors aren't created equal and nor are their various support and supply components; induction and exhaust components; and sensors; etc.
Once the O2 sensor is removed the (previously set) CO settings will maintain the balance between components as previously set.
I do not recommend making changes to the CO setting if you've installed a TFI or EJK; because the 1st pot/setting (green) will make a uniform adjustment to the AFR and you do not want to upset the previous balance set using the CO.
To set the CO settings correctly you will need an exhaust gas analyser... not the kind of thing that usually in the DIY tool kit.
Once the O2 sensor is removed the (previously set) CO settings will maintain the balance between components as previously set.
I do not recommend making changes to the CO setting if you've installed a TFI or EJK; because the 1st pot/setting (green) will make a uniform adjustment to the AFR and you do not want to upset the previous balance set using the CO.
To set the CO settings correctly you will need an exhaust gas analyser... not the kind of thing that usually in the DIY tool kit.
![[Image: gallery_10460_302_12664.png]](http://www.carpe-tdm.net/ipb/uploads/gallery/album_302/gallery_10460_302_12664.png)