Bad catalytic converter ?
11-26-2017, 11:29 AM
#1
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clk w208
Bad catalytic converter ?
Hello, does my catalytic went bad ? There is diffirent sound from engine
And with bosch diagnostic i have this problems, just names without fault codes :/
1.Catalytic converter deteroration misfire cylinder 1
2.Misfiring detection cylinder 1
3.ignition circuit monitoring spark duration cyl 3 too short
4. mixture adaptation 1 (additive) mixture too lean at part load
Spark plugs is ngk iridium, and ignition coils is ngk both new. What can it be ? Maybe it is sound from bad kompressor ? Loudless bad sound it is when rpm is aobut 2000-2500
1.Catalytic converter deteroration misfire cylinder 1
2.Misfiring detection cylinder 1
3.ignition circuit monitoring spark duration cyl 3 too short
4. mixture adaptation 1 (additive) mixture too lean at part load
Spark plugs is ngk iridium, and ignition coils is ngk both new. What can it be ? Maybe it is sound from bad kompressor ? Loudless bad sound it is when rpm is aobut 2000-2500
11-26-2017, 10:03 PM
#2
I would address the misfire faults first as misfire running conditions can cause a catalytic converter and mixture faults. I would swap ignition coils on cyls 1 and 3 with two other cyls., clear faults with your scanner then see if the misfires follow the coils. If the misfires don't follow coils then make sure your plugs are correct type and gapped correctly. You may have to swap injectors between cylinders if its not coils or plugs. If your hearing an abnormal noise in the valvetrain then you may have a spring or valve issue. Also make sure you don't have an intake leak around those cylinders in the intake manifold. Your engine doesn't sound that bad in the video nor does it seem to be running too rough. Is your check engine light on?
