Is there a global offset for battery? my battery in AEM reads about .5 volt lower than whats measured at battery or at plug for ECU.

In addition the wideband offset acts funky. If I set offset to match at idle it will not match well at WOT. hoping the above issue is causing this as well.?

 

Common with v1s. I get it right at idle and watch the gauge under wot. Then compare. Seems to be the easiest for me.

No global offset. Only injector comp....