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2009 Audi A4 Quattro 2.0L MIL Lamp on
Posted to European Driveability on 4/14/2016 7 Replies

This car came in a month ago with p0302,p0304,p2279, and p2188. At that time I could not duplicate the problem. I smoke checked the intake, and found no [...] fuel trim was only 2% ST and LT. I tested the purge valve, and it did not leak, and it operated prope...

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car Vehicle Data

2009 Audi A4 Quattro

VIN WAUSF78K99
Engine2.0 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / Direct
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0506Idle Speed Control System Lower Than Expected
P050BCold Start Ignition Timing Performance Problem
P052ACam adj. B1 intake
P2178Fuel Trim System Lean At Idle Speed (Bank 1)
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich
P2279Intake Air System Leak
Message Closed w/FIX

car Vehicle Data

2009 Audi A4 Quattro

VIN WAUSF78K99
Engine2.0 L / 4 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / Direct
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0506Idle Speed Control System Lower Than Expected
P050BCold Start Ignition Timing Performance Problem
P052ACam adj. B1 intake
P2178Fuel Trim System Lean At Idle Speed (Bank 1)
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich
P2279Intake Air System Leak