Mazda 6 3rd Generation (2013-Present)
Hi all, I have a Mazda 6 2017 with 185000 kms on it. Had a number of issues in the last few months (P0172 rich code, P0421 cat efficiency low) that lead to replacing spark plugs, coils, cat converter, downstream O2 sensor.
Presently I have idle only misfires on cylinder 2 and 4 with no CEL...