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1998 Audi A4 2.8L MIL Lamp on
Posted to European Driveability on 11/19/2004 3 Replies

Hello- This car came to us originally with two codes, one P0411 secondary air injection incorrect flow and one p0422 main catalyst bank 1 efficiency below threshold. After checking the secondary air system and finding no problems, I found the post cat oxygen s...

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car Vehicle Data

1998 Audi A4

VIN WAUGD28D7W
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently
Misc.Avant

Trouble Codes

P0422Catalyst Efficiency Below Normal (Bank 1)
Message Closed

car Vehicle Data

1998 Audi A4

VIN WAUGD28D7W
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently
Misc.Avant

Trouble Codes

P0422Catalyst Efficiency Below Normal (Bank 1)