incorrect vs faulty

incorrect and faulty both are adjectives.

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

As adjectives, incorrect and faulty are synonyms defined as:

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

Other synonyms of incorrect include wrong.

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