faulty vs incorrect

faulty and incorrect both are adjectives.

Word	Noun	Adjective	Verb	Adverb
faulty	No	Yes	No	No
incorrect	No	Yes	No	No

As adjectives, faulty and incorrect are synonyms defined as:

faulty and incorrect: characterized by errors; not agreeing with a model or not following established rules

Other synonyms of faulty include wrong.

faulty (adjective)	incorrect (adjective)
having a defect	not correct; not in conformity with fact or truth
characterized by errors; not agreeing with a model or not following established rules	not in accord with established usage or procedure
	characterized by errors; not agreeing with a model or not following established rules
	(of a word or expression) not agreeing with grammatical principles