2006 Toyota Corolla

Selling my grandmas toyota it has check engine light on but drives like it should ive droven it to porterville and lindsay a couple times tags are good till october of 2027 i did change all 4 spark plugs ignition coils, i cleaned the throttle body, clean mass air flow sensor. Shampooed the carpets have it a good cleaning asking 2k obo it does have a check engine but it shouldnt be that hard of a fix i been really busy lately ans haven’t had time to fix what needs to be fixed,parts are cheap for this modle so shouldnt be too much money into this thing great on gas 25$ gives a half tank and its a v4 im getting a new truck and dont feel likee putting more money into this car