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2000 Volkswagen Passat 4 Motion 2.8L MIL Lamp on
Posted to European Driveability on 6/24/2005 9 Replies

In for check engine light and inspection. codes for cat efficiency both banks set, smoke checked for vacum leaks, ok. Checked maf meter reading, well within spec., checked front o2 sensors switching fast, cleared codes. Light came back on 2 days both cat eff. ...

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car Vehicle Data

2000 Volkswagen Passat 4 Motion

VIN WVWUH23B5Y
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / PORT
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.4 Motion, Atq Engine

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P0431Catalyst Efficiency Below Normal (Bank 2)
Message Closed

car Vehicle Data

2000 Volkswagen Passat 4 Motion

VIN WVWUH23B5Y
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / PORT
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.4 Motion, Atq Engine

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P0431Catalyst Efficiency Below Normal (Bank 2)