Agree'd. I have tune for friends and when you compare narrow to wide it is always diff and never consistent. 920 could be lean on one and rich on the other. to get the trims to lock in at PE/ WOT you need to have the prior cells as close to if not Zero.

Quote Originally Posted by 01gpgt01 View Post
the closer to zero you get the cruise Lft's the better the chances the WOT will lock in at zero. You really need a wideband. I cant tell you how fullish it is to tune WOT on a narrowband. At 920MV my cars hitting 11.3 afr FWIW. @ 880 im around 11.8