2000 Volkswagen Passat 4 Motion 2.8L MIL Lamp on
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. ...
FIX posted 8/6/2005
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Vehicle Data2000 Volkswagen Passat 4 Motion
Trouble Codes
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Vehicle Data
2000 Volkswagen Passat 4 Motion
VIN | WVWUH23B5Y |
Engine | 2.8 L / 6 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI / PORT |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Misc. | 4 Motion, Atq Engine |
Trouble Codes
P0421 | Catalytic Converter Efficiency (Bank 1) |
P0431 | Catalyst Efficiency Below Normal (Bank 2) |