My 2018 Plus4 - a 2.0 L GDI rarely gets above 35 - I think it is running rich as the tailpipe is very black. How is this adjusted? Is there a simple adjustment or does it need a full Ecuador’s remap?
Robbie, my previous +4 2016 gdi sounded similar to yours in being rather sooty. I took it to the dealer for a ECU 'flash' which was done free of charge. It changed things significantly, much leaner and seemed more willing at lower revs.
As yours is only 2018 I would think a polite moan to your dealer may result in the same. Worth a try.
My newer +4 doesn't have the issue, I suspect a lot of these 'upgrades' we never get to hear about.
