Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Aging, Bank 1, Sensor 1, Checking
Oxygen Sensor (O2S) aging, bank 1, sensor 1, checking
Special tools and equipment
VAG1551 or VAG1552 Scan Tool (ST) with VAG1551/3 adapter cable
Checking requirements
-
Engine coolant temperature at least 85 °C (185 °F) See VAG1551 scan tool function 08, display group 004, display field 3
Checking, function
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Connect VAG1551 or VAG1552 scan to( and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (engine running at idle),
Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG1551/VAG1552 Scan Tool" under "Engine", See:
Powertrain Management/Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -4- to select "Basic Setting" function 04, and press -Q- button to confirm input.
Indicated on display
Basic Setting
HELP
Input display group number XXX
-
Press buttons -0-, -3- and -4- to input display group number 34 (034), and press -Q- button to confirm input.
Indicated on display (1-4 = display fields)
System in Basic Setting 34
->
1 2 3 4
-
Increase engine speed to 1800-2200 RPM.
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Maintain engine speed at 1800-2200 RPM and compare display with specified values for O2S aging (before TWC) in display fields 3 and 4).
NOTE: To be sure that the temperature is within the specified range, the specified RPM has to be maintained for at least 1 minute Observe O2S test
status in display field 4.