Kontrolka CHECK - ako odstraniť ?

Kontrolka CHECK - ako odstraniť ?

Postby BlueRi0 » 01.04.2017 14:00

Zdravím , mám Rio 1,4 16V a svieti mi kontrolka CHECK , na diagnostike píše slabá učinnosť katalyzatora porucha P0420 ked som todal vymazať tak za 9 dni sa mi rozsvietila znova. Neviete kde by mohol byt problem nejake rady ? dakujem
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Re: Kontrolka CHECK - ako odstraniť ?

Postby Rastiksvk » 01.04.2017 15:40

Niesom odbornik ale mozno ti odisla lambda sonda ...
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Re: Kontrolka CHECK - ako odstraniť ?

Postby Beda » 02.04.2017 08:59

P0420 chyba anglicke vysvetleni:

The catalyst’s efficiency is demonstrated by its ability to oxidize CO and hydrocarbon emissions. The Powertrain Control Module (PCM) compares the output signals of the front and rear oxygen sensors to determine whether the output of the rear sensor is beginning to match the output of the front oxygen sensor. Air/fuel mixture compensation keeps the frequency of the front oxygen sensor high due to the changes from rich-to-lean combusition. The catalyst causes the rear oxygen sensor to have a lower frequency. As the catalyst wears, the rear oxygen sensor’s signal trace begins to match the front oxygen sensor’s signal trace. That is because the catalyst becomes saturated with oxygen and cannot use the oxygen to convert hydrocarbon and CO into H₂O and CO₂ with the same efficiency as when it was new. A completely worn catalyst shows a 100% match between the frequency of the front and rear sensors.


Chybovou hlasku muze zpusobit:
● Exhaust system
● B1S2 (downstream oxygen sensor)
● Catalyst converter
● ECM
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Re: Kontrolka CHECK - ako odstraniť ?

Postby buko1 » 11.08.2017 13:41

Mne keď svietila CHECK, tak ma súčasne kopala karoséria a motor išiel iba na 3 valce. Potom som zistil že sú popraskané 2 zo 4 zapaľovacích káblov ku sviečkam. Jeden som vymenil, druhý (menej popraskaný) zaizoloval izolačkou a auto už 5 rokov normálne jazdí. Pôvodne som chcel vymeniť oba, ale sekol som sa v objednávke, takže mi síce prišli 2 káble, ale jeden bol k inej sviečke, kde bol kábel v poriadku. A ako na potvoru sa ten ešte nepokazil).
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