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Possible causes of malfunction if sensor control frequency is too slow: z Slots or holes in sensor body are blocked z Sensor vent hole in area of connecting wire is blocked z Sensor has been overheated (glazed) z Sensor has been damaged by leaded fuel Checking basic voltage for oxygen sensor 2 z Remove protective cover -arrows- and separate 4-pin connector (black/brown) -1- to Oxygen Sensor Motronic Engine Control Module (ECM) -J220- VOLTAGE FOR OXYGEN SENSOR 2 z Check oxygen sensor wiring, see CHECKING OXYGEN SENSOR WIRING, OXYGEN SENSOR 2 Constant z Open circuit via: oxygen sensor, sensor wiring, Ground (GND) wiring, Motronic Engine Control Module (ECM) -J220- Constant 0.000 z Short to Ground (GND) via: oxygen sensor, sensor wiring, Ground (GND) wiring, Motronic Engine Control Module (ECM) -J220-
2003 Volkswagen New Beetle GLS 1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle
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