That at least is an easy answer...

You have LCDOUT $FE...

either put a control character after the $FE (eg $FE,$C0 to position on the 2nd line), of lose the $FE.

so either...

LCDout $FE,$C0,"P:",#Dec_mb dig 4,#Dec_mb dig 3, #Dec_mb dig 2,#Dec_mb dig 1, ".",dec1 Dec_mb,"F:",#Dec_tempf dig 3, #Dec_tempf dig 2,#Dec_tempf dig 1, ".",dec1 Dec_Tempf

or

LCDout "P:",#Dec_mb dig 4,#Dec_mb dig 3, #Dec_mb dig 2,#Dec_mb dig 1, ".",dec1 Dec_mb,"F:",#Dec_tempf dig 3, #Dec_tempf dig 2,#Dec_tempf dig 1, ".",dec1 Dec_Tempf

Bah! Beaten to an answer!