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International Automotive Technicians Network
2001 Audi A6 Quattro 2.7L MIL Lamp on
Posted to European Driveability on 12/19/2006 10 Replies

Hello folks in iatn land. I need some help with this one.I know this car needs a t stat but i see no problem with the air system. I have 15in of vac at the valves. Ihave good air pump preasure and vol. And I have good flow through the heads. I did check the re...

10 Replies Received (View Replies)

  Related Documents & Media  2001 Audi A6 Quattro

 
Message Closed w/FIX

car Vehicle Data

2001 Audi A6 Quattro

VIN WAUED64B11
Engine2.7 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P12965-Volt VREF Supply Not Present
P1411Cylinder 1 Reactivation Control Performance
P1423Fuel Tank Large Leak
P1479Transmission Relay Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2001 Audi A6 Quattro

VIN WAUED64B11
Engine2.7 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P12965-Volt VREF Supply Not Present
P1411Cylinder 1 Reactivation Control Performance
P1423Fuel Tank Large Leak
P1479Transmission Relay Circuit Malfunction