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

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Measured value (data) blocks<br />

Página 33 de 86<br />

01-214<br />

Evaluating display groups 22 to 24, display zones 3 and 4 - Ignition timing<br />

retardation cyl. 1 to 6<br />

Appears on<br />

display<br />

All cylinders<br />

between<br />

8.0...15.0 CA<br />

and at the same<br />

display values<br />

One cylinder<br />

deviates greatly from<br />

the others<br />

Possible cause<br />

Knock sensor<br />

faulty<br />

Connector<br />

corroded<br />

Knock sensor<br />

incorrectly<br />

tightened<br />

Accessories on<br />

engine loose<br />

Poor fuel quality<br />

Connector<br />

corroded<br />

Engine damaged<br />

Accessories on<br />

engine loose<br />

Corrective action<br />

- Check knock sensors Page 28-30<br />

- Loosen knock sensor and tighten to<br />

20 Nm<br />

- Tighten accessories<br />

- Change type of fuel<br />

- Check knock sensors Page 28-30<br />

- Check compression pressures:<br />

<strong>Repair</strong> Manual, 2.8 Liter VR6 4V<br />

Engine Mechanical, Engine Code(s):<br />

BDF; <strong>Repair</strong> Group 15<br />

- Tighten accessories<br />

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

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

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