Not wanting to wander off topic, but for info....
Do you know where it goes after Leeds?
The diagram is 0510 LIV-ELP, 0617 ELP-HSB, 0634 HSB-ELP, 0715 ELP-LDS, 1018 LDS-MCV, 1158 MCV-LDS, 1338 LDS-CTR, 1614 CTR-LDS, 1919 LDS-MCV, 2058 MCV-LDS, 2250 LDS-KNO.
It doesn’t seem to be the same unit that forms the 15:38 service back to Ellesmere Port either unless I’m mistaken. I doubt they’ll swap it from a Sprinter in that case but if they make it a 158 at least that would be something.
It's a different unit, the afternoon run is booked as a 150 - 158s can't work this diagram as only Liverpool sign Helsby to Ellesmere Port, however they don't sign 158s.
This problem occurred as recently as last Friday when 158795 ended up on the diagram, and 1D72 was cancelled from Victoria because of the incorrect traction.