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2005 Audi A4 Quattro 2.0L Poor Idle Quality, MIL Lamp on
Posted to European Driveability on 4/21/2009 9 Replies

Think that i have the po171 code fixed but idle still want to hunt only in park or nuetral(po507). Drove 25 miles and no codes . Idle will go up to 1500rpm then drop down to 750rpm then repeats. Short term fuel trim jumps to +25 when idle goes up and drops to ...

9 Replies Received (View Replies)

  Related Documents & Media  2005 Audi A4 Quattro

 
Message Closed w/FIX

car Vehicle Data

2005 Audi A4 Quattro

VIN WAUDF68E45
Engine2.0 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursHot
Misc.Sedan Quattro

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

2005 Audi A4 Quattro

VIN WAUDF68E45
Engine2.0 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursHot
Misc.Sedan Quattro

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0507Idle Speed Control System Higher Than Expected