Fuel and air mixture, additional emissions regulations

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P2004	Intake Manifold Runner Control Stuck Open (Bank 1)	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage 2.65 V	Time after engine start, 15 sec. Duty cycle, Commanded open	8 Seconds	Continuous 2 DCY
P2005	Intake manifold flap for air stream regulation, (Bank 2) Stuck open	Check the Intake Manifold Runner Position Sensor 2 G512. Refer to → Intake Manifold Runner Position Sensor 2 G512 , Checking .	Signal voltage 2.65 V	Time after engine start, 15 sec. Duty cycle, Commanded open	8 Seconds	Continuous 2 DCY
P2006	Intake manifold flap for air stream regulation, bank 1 Stuck closed	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage > 4 V	Time after engine start, 15 sec. Duty cycle, Commanded closed	8 Seconds	Continuous 2 DCY
P2007	Intake manifold flap for air stream regulation, bank 2 Stuck closed	Check the Intake Manifold Runner Position Sensor 2 G512. Refer to → Intake Manifold Runner Position Sensor 2 G512 , Checking .	Signal voltage > 4 V	Time after engine start, 15 sec. Duty cycle, Commanded closed	8 Seconds	Continuous 2 DCY
P2008	Intake Manifold Runner Control Circuit/Open Bank 1	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal current >0.8 mA	Duty cycle, Commanded On	2 Seconds	Continuous 2 DCY
P2009	Intake Manifold Runner Bank 1 Short to ground	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage >2 V	Duty cycle, Commanded Off	2 Seconds	Continuous 2 DCY
P2010	Intake Manifold Runner Bank 1 Short to Battery +	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal current >1 A	Duty cycle, Commanded On	2 Seconds	Continuous 2 DCY
P2014	Intake Manifold Runner Position Sensor/Switch Circuit Bank 1	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage, 0.2 V		2 Seconds	Continuous 2 DCY
P2015	Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage 4.5 - 4.8 V 0.5 - 0.2 V	ECT, >6°C IAT, >6°C	0.5 Seconds	Continuous 3 DCY
P2017	Intake Manifold Runner Position Sensor Short to B+	Check the Intake Manifold Runner Position Sensor G336. Refer to → Intake Manifold Runner Position Sensor G336 , Checking .	Signal voltage >4.8 V		2 Seconds	Continuous 2 DCY
P2019	Sensor for intake manifold flap position 2 Electrical Malfunction	Check the Intake Manifold Runner Position Sensor 2 G512. Refer to → Intake Manifold Runner Position Sensor 2 G512 , Checking .	Signal voltage, 0.2 V		2 Seconds	Continuous 2 DCY
P2020	Sensor for intake manifold flap position 2 Range/Performance	Check the Intake Manifold Runner Position Sensor 2 G512. Refer to → Intake Manifold Runner Position Sensor 2 G512 , Checking .	Signal voltage 4.5 - 4.8 V 0.5 - 0.2 V	ECT, >6°C IAT, >6°C	0.5 Seconds	Continuous 3 DCY
P2022	Intake Manifold Runner Position Sensor 2 Short to Battery +	Check the Intake Manifold Runner Position Sensor 2 G512. Refer to → Intake Manifold Runner Position Sensor 2 G512 , Checking .	Signal voltage >4.8 V		2 Seconds	Continuous 2 DCY
P2088	A Camshaft Position Actuator Control Circuit Low (Bank 1)	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Signal voltage, 3 V	Camshaft valve, commanded off	2 Seconds	Continuous 2 DCY
P2089	A Camshaft Position Actuator Control Circuit High (Bank 1)	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Signal current, >1 A	Camshaft valve, commanded on	2 Seconds	Continuous 2 DCY
P2090	"B" Camshaft Position Actuator Control Circuit Low (Bank 1)	Check the Camshaft Adjustment Valve 1 (exhaust) N318. Refer to → Camshaft Adjustment Valve , Checking .	Short to ground 3 V	Camshaft valve, commanded off	2 Seconds	Continuous 2 DCY
P2091	"B" Camshaft Position Actuator Control Circuit High (Bank 1)	Check the Camshaft Adjustment Valve 1 (exhaust) N318. Refer to → Camshaft Adjustment Valve , Checking .	Short to battery + >1 A	Camshaft valve, commanded on	2 Seconds	Continuous 2 DCY
P2092	A Camshaft Position Actuator Control Circuit Low (Bank 2)	Check the Camshaft Adjustment Valve 2 N208. Refer to → Camshaft Adjustment Valve , Checking .	Signal voltage- 3 V	Camshaft valve, commanded off	2 Seconds	Continuous 2 DCY
P2093	A Camshaft Position Actuator Control Circuit High (Bank 2)	Check the Camshaft Adjustment Valve 2 N208. Refer to → Camshaft Adjustment Valve , Checking .	Signal current > 1 Amp	Camshaft valve, commanded on	2 Seconds	Continuous 2 DCY
P2094	"B" Camshaft Position Actuator Control Circuit Low (Bank 2)	Check the Camshaft Adjustment Valve 2 (exhaust) N319. Refer to → Camshaft Adjustment Valve , Checking .	Short to ground 3 V	Camshaft valve, commanded off	2 Seconds	Continuous 2 DCY
P2095	"B" Camshaft Position Actuator Control Circuit High (Bank 2)	Check the Camshaft Adjustment Valve 2 (exhaust) N319. Refer to → Camshaft Adjustment Valve , Checking .	Short to battery + >1 A	Camshaft valve, commanded on	2 Seconds	Continuous 2 DCY
P2096	Post Catalyst Fuel Trim System Too Lean Bank 1	Check the Heated Oxygen Sensor (HO2S) G39. Refer to → Heated Oxygen Sensor (HO2S) before Catalytic Converter, Checking . Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130. Refer to → Oxygen Sensors (O2S) Behind Three Way Catalytic Converter (TWC) behind Catalytic Converter, Checking .	Integral part of lambda control post cat, >10%	Lambda control, Closed loop Lambda control post cat, Closed loop Engine speed, 640-4512 rpm Engine load, 15 - 70% Modeled catalyst temp, >400°C -Set value, 0.96 - 1.04 Delta engine speed, 7500 rpm/s Delta mass air flow, 15 g/rev/s Accelerator PP value, 1000%/s Mass air flow, 9.4-528 kg/h	120 Seconds	Continuous 2 DCY
P2097	Post Catalyst Fuel Trim System Too Rich Bank 1	Check the Heated Oxygen Sensor (HO2S) G39. Refer to → Heated Oxygen Sensor (HO2S) before Catalytic Converter, Checking . Check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130. Refer to → Oxygen Sensors (O2S) Behind Three Way Catalytic Converter (TWC) behind Catalytic Converter, Checking .	Integral part of lambda control post cat, -10%	Lambda control, Closed loop Lambda control post cat, Closed loop Engine speed, 640-4512 rpm Engine load, 15 - 70% Modeled catalyst temp, >400°C -set value, 0.96 - 1.04 Delta engine speed, 7500 rpm/s Delta mass air flow, 15 g/rev/s Accelerator PP value, 1000%/s Mass air flow, 9.4-528 kg/h	120 Seconds	Continuous 2 DCY
P2098	Bank 2, oxygen sensor correction behind cat Lean control limit exceeded	Check the Heated Oxygen Sensor (HO2S) 2 G108. Refer to → Heated Oxygen Sensor (HO2S) before Catalytic Converter, Checking . Check the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131. Refer to → Oxygen Sensors (O2S) Behind Three Way Catalytic Converter (TWC) behind Catalytic Converter, Checking .	Integral part of lambda control post cat, >10%	Lambda control, Closed loop Lambda control post cat, Closed loop Engine speed, 640-4512 rpm Engine load, 15 - 70% Modeled catalyst temp, >400°C -set value, 0.96 - 1.04 Delta engine speed, 7500 rpm/s Delta mass air flow, 15 g/rev/s Accelerator PP value, 1000%/s Mass air flow, 9.4-528 kg/h	120 Seconds	Continuous 2 DCY
P2099	Bank 2, oxygen sensor correction behind cat Rich control limit exceeded	Check the Heated Oxygen Sensor (HO2S) 2 G108. Refer to → Heated Oxygen Sensor (HO2S) before Catalytic Converter, Checking . Check the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131. Refer to → Oxygen Sensors (O2S) Behind Three Way Catalytic Converter (TWC) behind Catalytic Converter, Checking .	Integral part of lambda control post cat, -10%	Lambda control, Closed loop Lambda control post cat, Closed loop Engine speed, 640-4512 rpm Engine load, 15 - 70% Modeled catalyst temp, >400°C -set value, 0.96 - 1.04 Delta engine speed, 7500 rpm/s Delta mass air flow, 15 g/rev/s Accelerator PP value, 1000%/s Mass air flow, 9.4-528 kg/h	120 Seconds	Continuous 2 DCY