The Best Jeep Yj Check Engine Light References. During the day with sun i didn’t notice it. Web 1 1991wrangler4 discussion starter · jun 7, 2019 anyone here have any idea how to get check engine light working?
Everything seems to be running. To see what your error codes are, turn your key from off.to on.off.on.off.on. Web a check engine light is an indication that your pcm or ecm has detected a fault somewhere between the nose of your jeep wrangler and the tailgate.
