I have 92 mazda Navajo 4.0L 4x4 that will not pass emisions in the great state of Pa. .
Been getting intermittent CEL. Read dtc as follows KOEO 111, CM 171, 173,& 179. KEOER TEST SCANNER WILL NOT MOVE FROM RECIEVING CODES DISPLAY DOES ANYONE KNOW WHATS GOING ON?
SCANNER IS INNOVA 3140