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Metall Auto Sauerstoff Sensor Extender Spacer Adapter M18X 1,5 Gewinde Überprüfen Bung Hohe Qualität Durable Auto CEL O2 Eliminator - AliExpress

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1pcs Universal O2 Sensor Spacer Adapter M18x1.5 Check Engine Light Cel Mini Catalyst P0420 P0430 - Exhaust Gas Oxygen Sensor - AliExpress

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Vastfire O₂ Sensor Spacer Adapter 90 Degree Connector Adapter M18x1.5 Universal

In vehicles with EURO 3 and higher vehicle emissions standards the second lambda oxygen sensor emulator is located after the catalytic converter. It plays a diagnostics role. If it detects any irregularities on the basis of the data from the engine control unit it displays an error on the dashboard and the engine can switch into emergency mode (depending on the make of car).

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2pcs Oxygen Sensor Adapter M18X1.5 P0420 P0430 O2 Sensor Spacer Adapter Mini Catalytic Converter Exhaust Gas Oxygen Sensor Parts

M18 x 1,5 Abgas Sauerstoff Sensor Bung Adapter 44mm O2 Verlängerung Spacer Eisen Überzug Nickel Extender Universal für 18MM Gewinde - AliExpress