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Turbo
Lambda sensor
EGR valve
Diesel particulate filter (DPF)
Exhaust silencer
EGR cooler
Exhaust mounting kit
Exhaust pipe
Exhaust flex pipe
Exhaust hanger
Exhaust manifold
Dosage module
Exhaust gasket
Exhaust clamp
Middle silencer
Exhaust tips
DPF cleaning agent
Secondary air valve
Front silencer
Silencer rubber
Catalytic converter mounting kit
Silencer mounting kit
Exhaust flap
Exhaust heat shield
Exhaust manifold mounting kit
Euro1- / euro2- / d3 conversion
Replace a Spare part Catalytic converter – a defective one or if the limit of use has been already reached. Find out useful information about Catalytic converter
Faults of the catalyst
mechanical damage to the catalyst shell;
damage or destruction of converter cells;
destruction of the system chemical catalyst.
Symptoms of the catalytic converter failure
engine shut off when idling;
hindered start of the engine;
light blue or blue-gray color of the exhaust gas;
deterioration of acceleration and the engine on-speed;
presence of strange noise in the exhaust system;
«Check Engine» indicator reading on the instrument panel;
a significant increase in fuel consumption (up to 1.5-2 l/100 km);
odor of hydrogen sulfide in the exhaust system;
appearance of the metal stains on the catalyst case.
Causes of catalyst faults
use of ethanol-blended fuel;
use of low-quality fuel;
failure of the combustible mixture formation and change of its optimal proportions;
unburned fuel or oil getting in the catalyst;
converter internal cells damage;
catalyst clogging with fuel combustion products;
a significant excess of the part service life;
improper use.
Diagnostics
Inspection of the catalyst can be performed only at service stations, because the system analysis requires special equipment and specific skills. Independently, you can only assess the structural condition of the part. If it has mechanical damages, even in the absence of fault signs you will soon need replacement of the catalyst.
Cell throughput is measured via pressure gauge connected instead of the first oxygen sensor. After this procedure you need to accelerate the engine to 3000 rpm. Normal system pressure should not be higher than the level of 0.3 kgf / cm2 or 2.94 Pa.
The service life of the catalytic converter is designed for 100 000-150 000 kilometers. Exceeding it is strongly not recommended, because the decrease in capacity of the catalyst cells and resulting increased pressure in the system may cause an engine failure.
Helpful tips on operation, causes of faults, troubleshooting, and service intervals:
