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2005 Audi A4 Quattro 1.8L Poor Idle Quality, Misfire, MIL Lamp on
Posted to European Driveability on 9/15/2009 5 Replies

runs very rough and mil flashes at idle. runs fine with foot on brake and in gear if rpm is above 1100 rpm.

MAF reads higher than alldata says it should at idle. checked power, ground and 5 volt ref. all ok. Replaced MAF with new bosch from aftermarket suppli...

5 Replies Received (View Replies)

  Related Documents & Media  2005 Audi A4 Quattro

 
Message Closed w/FIX

car Vehicle Data

2005 Audi A4 Quattro

VIN WAULC68E15
Engine1.8 L / 4 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle
Misc.California

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2005 Audi A4 Quattro

VIN WAULC68E15
Engine1.8 L / 4 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Idle
Misc.California

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected