New Beetle GLS L4-2.0L (AVH) (2001)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Aging, Check
Oxygen Sensor Aging Before TWC, Check
Oxygen Sensor Before Catalyst Aging, Checking
Special tools and equipment
-
Scan tool VAG 1551 or vehicle system tester V.A.G 1552 with cable VAG 1551/3B
-
V.A.G 1788/10 Engine speed adjuster
Test conditions
Coolant temperature must be at least 85 °C, See display group 04, display zone 3
Functional check
-
Connect scan tool VAG 1551 (V.A.G 1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idle
speed.
Connecting scan tool and selecting Engine Control Module (ECM) Refer to "Scan Tool Testing/Scan Tool Connecting and Initial
Checks/VAG1551 Scan Tool" See: Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons 0 and 4 for function "Basic Setting" and confirm entry with Q button.
Indicated on display
Basic setting
Input display group number XXX
-
Press buttons 0, 3 and 4 for "Display group number 34" and confirm entry with Q button.
Indicated on display (1-4 = Display zones)
System in basic setting 34
->
1
2
3
4
-
Set engine speed to at 2300 RPM using the speed regulator V.A.G 1788/10:
-
Maintain engine speed at 2300 RPM until display in display zone 4 jumps from "Test OFF" to "Test ON". Catalyst temperature in display zone 2
must be at least 365 °C
-
Continue to maintain speed at 2300 RPM until specification "B1-S1 OK" appears in display zone 4.