fire up vs light up

fire up and light up both are verbs.

Word	Noun	Adjective	Verb	Adverb
fire up	No	No	Yes	No
light up	No	No	Yes	No

As verbs, fire up and light up are synonyms defined as:

Other synonyms of fire up include light.

fire up (verb)	light up (verb)
begin to smoke	introduce light into
arouse or excite feelings and passions	begin to smoke
	become clear
	start to burn with a bright flame
	ignite