A couple updates -

Latest bin is a little better.

1. Seems like there could be a slight exhaust leak skewing the WBO2 readings leaner than actual. No matter how rich I skew fueling (large BPW increases), WBO2 only dips to 11:1 or so.

2. IAC is too high when warm (80+ counts in drive). Some reading here and at thirdgen.org says that might be part of the reason the idle is rough. Too much air through the IAC valve vs throttle blades. The counts are at ~130 cold and in Park.

Plan is to adjust the throttle stop to open it a bit more and reduce the IAC counts (at all times). And look for an exhaust leak.

One question about the "BPW Hack" - what are the units? Values I'm seeing are between 100 and 200. XDF notes on the hack say miliseconds, but that doesn't make sense.