New Beetle Turbo S L4-1.8L Turbo (AWP) (2002)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor & O2 Sensor Regulation Before Converter, Check
With Manufacturer's Scan Tool
Oxygen Sensor And Oxygen Sensor Control Before Three Way Catalytic Converter (TWC), Checking
NOTE:
-
Raise vehicle to reach oxygen sensor connector.
-
The Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) has constant regulation and can be distinguished by a 6-pin connector
from the Oxygen Sensor (O2S) behind the Three Way Catalytic Converter (TWC).
-
Only gold terminals may be used for servicing the terminals in the connector for the oxygen sensor.
Special tools, test equipment and auxiliary items
-
VAG 1551 scan tool or VAG 1552 mobile scan tool with VAG 1551/3B cable
-
VAG 1598/31 test box
-
VAG 1526 hand multimeter or VAG 1715 multimeter
-
VAG 1594 adapter set
-
Electrical Wiring Diagram
Test conditions
-
All fuses must be OK
-
Battery voltage must be at least 11.5 V
-
Exhaust system between Three Way Catalytic Converter (TWC) and cylinder head must be free of leaks
-
Engine Coolant Temperature (ECT) must be at least 80 °C, see display group 04, display zone 3
Functional check
-
Connect VAG 1551 scan tool ((VAG 1552). Start engine and select "Address word" 01 of Motronic Engine Control Module (ECM) -J220-.
Engine must be running at idle speed. Connecting scan tool and selecting Motronic Engine Control Module (ECM) -J220-. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool
Connecting/With Manufacturer's Scan Tool/Connecting VAG 1551 Scan Tool
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -8- for function "Read measuring value block" and confirm entry with -Q- button.
Indicated on display
Read measuring value block
Input display group number XXX
-
Press buttons -0-, -3- and -0- for "Display group number 30" and confirm entry with -Q- button.