I have a 100k clocked 9th gen, maintained perfectly from Honda Gateway/ Honda Pit stop Shaukat Khanum, used Honda oil and every maintenance. took care of car more than i care of myself
however i hear the same knock:
= in between 30~45Km/hr
= in between 1200~200 Rpm
after that it appears sometimes on motorway when i accelerate from 100 to 120.
I use mixed high octane throughout, air filter replacement 6~8k max. No one also can find the cause here. Catalytic converter was also cleaned by person in front of Packages Lahore, it was not that choked. it was not there before 80k, is there any chance of carbon deposits in combustion chamber? the only thing remain possible or someone mentioned above the EPV? who can adjust it or need to replace