D23 ys23ddtt lacking power, fuel heavy

[d.j.]

I'm hoping that I solve this problem before this is read but I doubt it.
My 2018 d23 st ys23ddtt has done just a few ks shy of 149000km and it's feeling like I'm towing with nothing behind me...

I have been driving in mixed conditions in the last few months between freeway (a few hills that are quite long) and city driving in Geelong. Since my wife stopped driving constant freeway to and from Melbourne I have noticed when I take off it takes more effort to get up to speed unless I floor it. Which also puts up the average l/100km.

It currently varies from 9.8(very frugal driving) to 10.5 almost 12 in harsh driving. I find it using more on a freeway drive for some reason. In the mornings while I am idle the average jumps .1 after a few minutes.

I had done a trans service at 145,000 as I've started to tow more, the gears still feel smooth and shift down fine.
The turbo does boost, has a sleight whistle from I believe when I had the catch can fitted but has since been removed after advice from a co-worker.

Did a scan this afternoon no codes, checked injector read out as I thought perhaps they may be failing all readouts were between .91 - 1.1

the only other things I haven't sussed are the maf sensor and from what I've been reading here and a few other places the solenoid valve filters which can clogg up.

It's been a real head banger as one of my co-workers has a 20' stx, tows constantly and it just felt so much better off the mark.

 

[d.j.]

I would also like to add the fuel has been regular since taken ownership but this didn't seem like it had been causing issue, I had filled up premium diesel last tank and little difference was noticed. I had even gone to change the fuel filter last weekend which was only 4000km old and was squeaky clean.

 

[d.j.]

I would also like to add the fuel has been regular since taken ownership but this didn't seem like it had been causing issue, I had filled up premium diesel last tank and little difference was noticed. I had even gone to change the fuel filter last weekend which was only 4000km old and was squeaky clean.

Last night I had also done an injector adaptive relearn which at first didn't seem like it's made any difference but this mornings drive certainly did. Might just keep driving and see how a full tank goes....