Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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Test Heated Oxygen Sensor (O2S) and Oxygen Sensor Control after Three Way Catalytic Converter (TWC). See: Oxygen Sensor & O2S Control
Behind Three Way Catalytic Converter (TWC), Checking/With Manufacturer's Scan Tool
Functional Test for Heated Oxygen Sensor (HO2S) 2 Bank 2
Indicated on display
Basic Setting
Input display group number XXX
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Press 0 and 4 for "Display Group Number 44", and then press Q to exit from input mode.
Indicated on display (1 - 4 = display fields)
System in Basic Setting 44
->
1
2
3
4
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Use VAG 1788/10 RPM adjuster to adjust engine RPM to 1800-2400 RPM:
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Hold RPM constant at 1800-2400 until indication in display field 2 shows
Cat. temperature at least 350 °C
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and in display field 4: "Test OFF" changes to "Test ON".
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Continue to hold RPM constant until in display field 4 expected value "B2-S2 OK" is indicated.
If indications do not resemble description:
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Test Heated Oxygen Sensor (O2S) and Oxygen Sensor Control after Three Way Catalytic Converter (TWC). See: Oxygen Sensor & O2S Control
Behind Three Way Catalytic Converter (TWC), Checking/With Manufacturer's Scan Tool