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1999 Audi A4 Quattro 2.8L Excessive Emissions, MIL Lamp on
Posted to European Driveability on 8/5/2011 8 Replies

Vehicle came in with P0411 secondary air flow incorrect. Had some failing vacuum lines so those and the vacuum solenoid were replaced. 6 weeks later the code came back and the combi valves were replaced. The air pump can be turned on manually and it appears to...

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  Related Documents & Media  1999 Audi A4 Quattro

 
Message Closed w/Summary

car Vehicle Data

1999 Audi A4 Quattro

VIN WAUED28D7X
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursIntermittently

Trouble Codes

P0411Too Much Or Too Little Pulsed Air Injection
Message Closed w/Summary

car Vehicle Data

1999 Audi A4 Quattro

VIN WAUED28D7X
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursIntermittently

Trouble Codes

P0411Too Much Or Too Little Pulsed Air Injection