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Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

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Functions, checking<br />

Página 13 de 37<br />

24-137<br />

- Road test vehicle to remove possible<br />

contaminates on Oxygen Sensor (O2S) and<br />

repeat check.<br />

Observe the valid safety precautions when<br />

performing a road test Page 24-33 .<br />

If the specifications in display zone 1 are not<br />

obtained even after a road test, or the value does<br />

not fluctuate by at least 2%:<br />

- Check Heated Oxygen Sensor (HO2S) for aging<br />

Page 24-150 .<br />

Possible causes of Diagnostic Trouble Code<br />

(DTC) when continuous regulation of sensor<br />

is too slow:<br />

The slots or holes in sensor body are blocked<br />

The sensor breather hole in area of connecting<br />

cable is blocked<br />

The sensor has been overheated (glazed)<br />

The sensor has been damaged by leaded<br />

fuel<br />

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...<br />

12/2/<strong>2005</strong>

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