stir up vs fire up

stir up and fire up both are verbs.

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

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

Other synonyms of stir up include heat, ignite, inflame, wake.

stir up (verb)	fire up (verb)
provoke or stir up	begin to smoke
change the arrangement or position of	arouse or excite feelings and passions
arouse or excite feelings and passions
try to stir up public opinion