Application

Makes	Series	Models	Year
SEAT	CORDOBA	6K1, 6K2	1993-2002
SEAT	IBIZA II	6K1	1993-2002
SEAT	TOLEDO I	1L2	1991-1999
SKODA	FAVORIT	781	1994-1994
SKODA	FAVORIT Forman	785	1991-1995
SKODA	FAVORIT Pickup	787	1992-1997
SKODA	FELICIA I	6U1	1994-1998
SKODA	FELICIA I Estate	6U5	1995-1998
VW	CORRADO	53I	1991-1995
VW	GOLF III	1H1	1991-1997
VW	GOLF III Cabriolet	1E7	1993-1998
VW	GOLF III Variant	1H5	1993-1999
VW	PASSAT B3/B4	3A2, 35I	1994-1996
VW	PASSAT B3/B4 Variant	3A5, 35I	1991-1997
VW	POLO III CLASSIC	6V2	1997-2001
VW	VENTO	1H2	1991-1998

Our advantage:

● RThe pre-greased thread makes it quick and easy to replace the oxygen sensor probe.

● Due to the tuned cable length, the probe is tailor-made for every vehicle type.

● The connector fits perfectly, just like in the original equipment.

Cowtotal’s Oxygen Sensor is 100% workshop-optimized.
This allows you to proceed quickly and safely during removal and installation.

CONTROL SYSTEM

① Engine Control Unit ② Fuel Injection ③ Upstream Oxygen Sensor ④ Downstream Oxygen Sensor

Working principle:

The oxygen sensor detects the oxygen concentration in the exhaust gas by generating a voltage. Typical oxygen sensors use zirconia electrodes, which are electrically conductive at high temperatures. The oxygen sensor separates the exhaust gas flow into two parts: one part is the outside air, and the other part is the exhaust gas. Due to the different oxygen concentrations in the two parts, the zirconia electrode generates an electromotive force between the two parts. The ECU determines whether the air-fuel mixture ratio is lean or rich based on this electromotive force.

Maintenance and Breakdown:

Oxygen sensors may fail due to carbon deposits, contaminants, or aging after long-term use. Common symptoms include decreased fuel economy, increased emissions, and engine warning lights coming on. Regular inspection and replacement of oxygen sensors are important measures to maintain engine performance and reduce pollution.

In summary, oxygen sensors play a vital role in the vehicle’s fuel management and emission control systems, ensuring that the engine operates at its best while effectively reducing harmful gas emissions.

WHY CHOOSE COWTOTAL OXYGEN SENSOR

● Increase Fuel Effciency ● lmprove Engine Performance ● Reduce Pollution

WHEN TO REPLACE A NEW OXYGEN SENSOR

① ldle Speed Instability ② Engine Light Illuminates ③ High Fuel Consumption

Attention:If you suspect the oxygen sensor has problems, it is advisable to have a professional repair shop diagnose and replace it as soon as possible to avoid further engine issues and loss of fuel efficiency.

▣ High temperature resistance

▣ Outer submembrane protection

▣ Not easily deformed

▣ Corrosion resistant soaking

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