Passat Sedan V6-2771cc 2.8L DOHC (AHA) (1998)
Checking function
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Connect VAG1551 or VAG1552 scan tool and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (with engine running at
idle), See: Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
HELP
Input display group number XXX
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Press buttons -0-, -3- and -2- to input display group number 32 (032), and press -Q- button to confirm input.
Indicated on display (1-4 = display fields)
Read Measuring Value Block 32
->
1 2 3 4
-
Check learning values for Oxygen Sensor (O2S) control before TWC (display fields 1- 4):
Display Group 32
If the specifications are attained:
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Change to display group 33 as follows:
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VAG1551: Press -3- button
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VAG1552: Press Up arrow button
Indicated on display (1-4 = display fields)
Read Measuring Value Block 33
->
1 2 3 4
-
Check Oxygen Sensor (O2S) control before TWC (display fields 1-4):