Anyone know what this means? It says it's used in the calculation for injector duration, but not how. Currently set to 0.9422.

Intake is stock, exhaust is catless, pretty much stock apart from that. I am going to build a new exhaust soon so will revisit when that's fitted I think.

I'm revisiting this and run a bit of analysis on a datalog. Fairly significant positive trims in closed loop. AFR accuracy actually isn't too bad when in open loop. Below averages the sum of long and short trims from +/- 200rpm and +/- 0.02 load for each site, and colours it green if there are > 20 ...

Yeh I don’t know what the trims were before, could have been 6ish and the change only bumped it up a few %.

+8% ish from memory. Will grab a log next time I take it out. Yep, got the full version

The UK has recently switched from mostly E5 to E10 at regular fuel pumps. To keep my fuel trims relatively low I think I need to bump a bit more fuel in everywhere - what's the tidiest way of doing this?