PROBLEM SOLVED!
Apparently, the black connector which normally plugs directly into the fuel pressure sensor on the fuel rail is not used on this late model FL1. Instead it has a green connector which comes direct from the side of the ECU box. I read somewhere that it is an upgrade on later models. Therefore the black connector is not used, and just dangles there.
The problem I was having was because I'm a klutz
, and I had mistakenly forgotten to reconnect one of the sensors on the rubber hoses on the left that connect to the air box!
Once I plugged that back in, I was up and running!
I feel a significant improvement in performance at low revs since fitting the EGR bypass... but I'm not sure how much of that is because it was driving like a pig yesterday when I had that left sensor disconnected.
I think I feel a difference though. I just went and picked up an air/pollen/oil/turbo vent/crankcase breather/fuel filter and 10lts of 5/30 semiSynth, and plan on doing a full service tomorrow.
Let's see if I can improve on the 30mpg I'm getting after fitting the EGR bypass and the full service!