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

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Functions, checking<br />

Página 21 de 37<br />

24-145<br />

- Press buttons -0- and -6- for function "End<br />

output" and confirm entry with -Q- button.<br />

- Road test vehicle to remove possible residue on<br />

Oxygen Sensor (O2S) and 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:<br />

- Check Oxygen Sensor (O2S) Behind Three Way<br />

Catalytic Converter (TWC) -G130- for aging<br />

Page 24-154<br />

Possible causes of Diagnostic Trouble Code<br />

(DTC) if sensor regulation frequency is too<br />

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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