Using a flashlight (A) and a cork (B) (models KG, KS, KE, KR, KU, KZ, FO, KQ) perform a visual inspection for blockages, melting or fur. catalyst failure. If there are visible areas of damage or blockage, replace the TWC.
Models KG, KS, KE, KR, KU, KZ, FO, KO

Models KN, KM, KY, MA, PH, IN, KK

(Information obtained from this source: www.hondabook.ru)
