catalytic converter AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide

[x] Cancel search | Manufacturer: AUDI, Model Year: 1999, Model line: A4, Model: AUDI A4 1999 B5 / 1.G
Pages: 46, PDF Size: 0.3 MB
AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1094/w960_1094-0.png AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide
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Page 31 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-99 Display on VAS5051: Checking oxygen sensor control after catalytic converter Test requirement: - Do not continue test until indication in display field -2- has reached "110" at lea

Page 33 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-101 Display fields 1 2 3 4 Display group 037: Diagnostic oxygen sensor control system Display xxx % x.xxx V x.xx --- Indicated Engine load Oxygen sensor voltage Ban

Page 34 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-102 Evaluation display group 037 Display field: 2 Possible cause Corrective action constant about 0.450 V Open circuit in wire 4 between oxygen sensor and control module - Check primar

Page 35 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-103 Continuation If specified value in display field 3 and 4 is not obtained: - Road test vehicle in order to free oxygen sensor of possible residue and repeat test.

Page 36 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-104 Checking primary voltage Note: Coolant reservoir screws must be removed and coolant reservoir must be placed to side in order to access the harness connector. The coolant hose

Page 37 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-105 If specified value is not obtained: - Check oxygen sensor wiring. If specified value is obtained: - Replace Oxygen Sensor (O2S) behind Three Way Catalytic Conver

Page 39 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-107 Oxygen sensor heating, Oxygen Sensor (O2S) Heater 1 -Z29- after catalytic converter, checking Special Tools and Equipment VAG1526A VAG1594A VAG1598/31 Pa ge 39 of 46 Ox yg en sen

Page 40 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-108 Test requirements: Coolant Temperature at least 80 C. Fuse for oxygen sensor heating OK Electrical Wiring Diagrams, Troubleshooting & Component Locations

Page 41 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide - Replace Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130-. Pa ge 41 of 46 Ox yg en sensor control, checkin g 11/22/2002 htt p://127.0.0.1:8080/audi/servlet/Dis play?action=Got

Page 45 of 46

AUDI A4 1999 B5 / 1.G AWM Engine Oxygen Sensor Control Checking User Guide 24-112 Oxygen sensor, removing and installing Special tools and equipment Procedure 3337 wrench, 7-piece set Locking compound G 052 112 A3 Note: Coolant reservoir screws
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