Fuel, air mixture, and 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
P000A	Intake (A) Camshaft Position Slow Response Bank 1	Check the Camshaft Position (CMP) Sensor G40. Refer to → Camshaft Position (CMP) Sensors , Checking . Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking . Check the Engine Speed (RPM) Sensor G28. Refer to → Engine Speed (RPM) Sensor G28 , Checking .	Signal change, 10°CA Number of checks, 15	Engine speed, >700 rpm Set point change behavior check, 3°CA for 1.2 sec. Set point change, >15°CA	1 Second	Continuous 2 DCY
P000B	Intake (B) Camshaft Position Slow Response Bank 1	Check the Camshaft Position (CMP) Sensor 3 G300. Refer to → Camshaft Position (CMP) Sensors , Checking . Check the Engine Speed (RPM) Sensor G28. Refer to → Engine Speed (RPM) Sensor G28 , Checking .	Signal change, 10°CA Number of checks, 15	Engine speed, >700 rpm Set point change behavior check, 3°CA for 1.2 sec. Set point change, >15°CA	1 Second	Continuous 2 DCY
P000C	Intake (A) Camshaft Position Slow Response Bank 2	Check the Camshaft Position (CMP) Sensor 2 G163. Refer to → Camshaft Position (CMP) Sensors , Checking . Check the Camshaft Adjustment Valve 2 N208. Refer to → Camshaft Adjustment Valve , Checking . Check the Engine Speed (RPM) Sensor G28. Refer to → Engine Speed (RPM) Sensor G28 , Checking .	Signal change, 10°CA Number of checks, 15	Engine speed, >700 rpm Set point change behavior check, 3°CA for 1.2 sec. Set point change, >15°CA	1 Second	Continuous 2 DCY
P000D	Intake (B) Camshaft Position Slow Response Bank 2	Check the Camshaft Position (CMP) Sensor 4 G301. Refer to → Camshaft Position (CMP) Sensors , Checking . Check the Engine Speed (RPM) Sensor G28. Refer to → Engine Speed (RPM) Sensor G28 , Checking .	Signal change, 10°CA Number of checks, 15	Engine speed, >700 rpm Set point change behavior check, 3°CA for 1.2 sec. Set point change, >15°CA	1 Second	Continuous 2 DCY
P0010	Intake (A) Camshaft Position Actuator Circuit/Open (Bank 1)	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Signal current, > 0.8 mA	Camshaft valve, commanded on	2 Seconds	Continuous 2 DCY
P0011	(A) Camshaft Position - Timing Over-Advanced or System Performance, Bank 1	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Adjustment Angle difference, > 12°CA for more than 3 seconds Number of checks, 3 times	Engine speed 700 rpm Oil temperature 15 -130°C Delta set point 3°CA, than wait 3 - 6 seconds	3 Seconds	Continuous 2 DCY
P0013	B Camshaft Position Actuator Circuit/Open, Bank 1	Check the Camshaft Adjustment Valve 1 (exhaust) N318. Refer to → Camshaft Adjustment Valve , Checking .	Signal current, > 0.8 mA	Camshaft valve, Commanded on	2 Seconds	Continuous 2 DCY
P0014	B Camshaft Position - Timing Over-Advanced or System Performance, Bank 1	Check the Camshaft Adjustment Valve 1 (exhaust) N318. Refer to → Camshaft Adjustment Valve , Checking .	Adjustment Angle difference, > 12°CA for more than 3 seconds Number of checks, 3 times	Engine speed 700 rpm Oil temperature 15 -130°C Delta set point 3°CA, then wait 3 - 6 seconds	3 Seconds	Continuous 2 DCY
P0020	Intake (A) Camshaft Position Actuator Circuit/Open (Bank 1)	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Signal current, > 0.8 mA	Camshaft valve, Commanded on	2 Seconds	Continuous 2 DCY
P0021	(A) Camshaft Position - Timing Over-Advanced or System Performance, Bank 2)	Check the Camshaft Adjustment Valve 1 N205. Refer to → Camshaft Adjustment Valve , Checking .	Adjustment Angle difference, > 12°CA for more than 3 seconds Number of checks, 3 times	Engine speed 700 rpm Oil temperature 15 -130°C Delta set point 3°CA, than wait 3 - 6 seconds	3 Seconds	Continuous 2 DCY
P0023	B Camshaft Position Actuator Circuit/Open, Bank 2	Check the Camshaft Adjustment Valve 2 (exhaust) N319. Refer to → Camshaft Adjustment Valve , Checking .	Signal current, > 0.8 mA	Camshaft valve, Commanded on	2 Seconds	Continuous 2 DCY
P0024	B Camshaft Position - Timing Over-Advanced or System Performance, Bank 2	Check the Camshaft Adjustment Valve 2 (exhaust) N319. Refer to → Camshaft Adjustment Valve , Checking .	Adjustment Angle difference, > 12°CA for more than 3 seconds Number of checks, 3 times	Engine speed 700 rpm Oil temperature 15 -130°C Delta set point 3°CA, than wait 3 - 6 seconds	3 Seconds	Continuous 2 DCY
P0030	HO2S Heater control circuit, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater current, 8 - 40 mA	Heater, Commanded on Duty cycle, 0.4 - 99.6%	5.2 Seconds	Continuous 2 DCY
P0031	HO2S Heater control circuit low, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater voltage, 1.9 - 2.22 V	Heater, Commanded off Duty cycle, 99.6%	5.2 Seconds	Continuous 2 DCY
P0032	HO2S Heater control circuit high, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater current >8 - 11 A	Heater, Commanded off Duty cycle, >0.4%	5.2 Seconds	Continuous 2 DCY
P0036	HO2S Heater control circuit, Bank 1 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z29. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater current, 8 - 40 mA	Heater, Commanded on Duty cycle, 0.4 - 99.6%	5.2 Seconds	Continuous 2 DCY
P0037	HO2S Heater control circuit low, Bank 1 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z29. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater voltage, 1.9-2.22 V	Heater, Commanded off Duty cycle, 99.6%	5.2 Seconds	Continuous 2 DCY
P0038	HO2S Heater control circuit high, Bank 1 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z29. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater current bank 1, > 8-11 A	Heater, Commanded off Duty cycle, >0.4%	5.2 Seconds	Continuous 2 DCY
P0040	02 Sensor Signals Swapped Bank 1 Sensor 1, Bank 2 Sensor 1	Check the oxygen sensors for swapping.	Deviation lambda control Sensor 1 > 24% and sensor 2 -24% or Sensor 1 - 24% and sensor 2 > 24%	Lambda control, active	50 Seconds	Continuous 2 DCY
P0041	02 Sensor Signals Swapped Bank 1 Sensor 2, Bank 2 Sensor 2	Check the oxygen sensors for swapping.	Sensor 1 > 0.830 V and sensor 2 0.156 V or Sensor 1 0.156 and sensor 2 > 0.830 V	Mass air flow integrated, > 400 G O2S rear, no other faults O2S rear, closed loop	50 Seconds	Continuous 2 DCY
P0050	HO2S Heater control circuit, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater current, 8 - 40 mA	Heater, Commanded on Duty cycle, 0.4 - 99.6%	5.2 Seconds	Continuous 2 DCY
P0051	HO2S Heater control circuit low, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater voltage, 1.9 - 2.22 V	Heater, commanded off Duty cycle, 99.6%	5.2 Seconds	Continuous 2 DCY
P0052	HO2S Heater control circuit high, Bank 1 Sensor 1	Check the Oxygen Sensor (O2S) Heater Z19. Refer to → Oxygen Sensor (O2S) Heaters before Catalytic Converter, Checking .	Heater current >8 - 11 A	Heater, commanded off Duty cycle, >0.4%	5.2 Seconds	Continuous 2 DCY
P0056	HO2S Heater control circuit, Bank 1 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z29. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater current, 8 - 40 mA	Heater, commanded on Duty cycle, 0.4 - 99.6%	5.2 Seconds	Continuous 2 DCY
P0057	HO2S Heater control circuit low, Bank 1 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z29. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater voltage, 1.9-2.22 V	Heater, commanded off Duty cycle, 99.6%	5.2 Seconds	Continuous 2 DCY
P0058	HO2S Heater control circuit high, Bank 2 Sensor 2	Check the Oxygen Sensor (O2S) Heater Z30. Refer to → Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC) Heater , Checking .	Heater current bank 2, > 35 A	Heater, commanded off Duty cycle, >0.4%	5.2 Seconds	Continuous 2 DCY
P0068	MAP/MAF Throttle Position Correlation	Check the Intake Air Temperature (IAT) Sensor G42. Refer to → Intake Air Temperature (IAT) Sensor G42 , Checking . Check the intake system for leaks (false air). Refer to → Checking Intake System for Leaks .	Deviation throttle excitations -43 or >43% -33 or >33% Deviation throttle exitations -39 - >21% or 2% -40 - >28% or 2%	Pressure quotient, 0.53 Time after engine start, >70 seconds Fuel cut off, Not active Fuel trim activity, -23->23% Pressure quotient, 0.63	3 Seconds	Continuous 2 DCY
P0069	Manifold Absolute Pressure (MAP) - Barometric Pressure Correlation	Check the Intake Air Temperature (IAT) Sensor G42. Refer to → Intake Air Temperature (IAT) Sensor G42 , Checking . Check the intake system for leaks (false air). Refer to → Checking Intake System for Leaks .	Altitude sensor signal vs IM pressure >27 kPa	Modeled pressure ratio at throttle 0.05 or Throttle position, 28-81° Engine speed, 600 - 4000 RPM	3 Seconds	Continuous 2 DCY
P0087	Fuel/Rail System Pressure - Too Low	Check the Low Fuel Pressure Sensor G410. Refer to → Low Fuel Pressure Sensor G410 , Checking .	Deviation fuel rail pressure control, 0.025 G Deviation lambda control, -10 +10%	Fuel cut off, Not active Engine speed, 640-3480 RPM Time after engine start, >250 seconds High pressure pump set point, 0.005-0.05 G Lambda control, Closed loop EVAP canister load, 25%	5 Seconds	Continuous 2 DCY
P0088	Fuel/Rail System Pressure - Too High	Check the Low Fuel Pressure Sensor G410. Refer to → Low Fuel Pressure Sensor G410 , Checking .	Actual pressure, >13.5 PSI	Engine speed, 640-6000 RPM Time after engine start, >250 seconds	5 Seconds	Continuous 2 DCY
P0089	Fuel Pressure Regulator 1 Performance	Check the Low Fuel Pressure Sensor G410. Refer to → Low Fuel Pressure Sensor G410 , Checking .	Deviation fuel pressure control (LP), 28% - >35%	Engine speed, 500-3000 RPM Time after engine start, >30 seconds ECT, 70-95°C Delta fuel pressure low, 25 kPa Fuel cut off, Not active	5 Seconds	Continuous 2 DCY
P0090	Fuel Pressure regulator 1 Control Circuit	Check the Fuel pressure and residual pressure. Refer to → Fuel pressure and residual pressure before high pressure pump , Checking . Check the Fuel Pressure Sensor G247. Refer to → Fuel Pressure Sensor G247 , Checking .	Signal voltage, 3 V	Camshaft valve, Commanded off	2 Seconds	Continuous 2 DCY
P0091	Fuel Pressure regulator 1 Control Circuit Low	Check the Fuel pressure and residual pressure. Refer to → Fuel pressure and residual pressure before high pressure pump , Checking . Check the Fuel Pressure Sensor G247. Refer to → Fuel Pressure Sensor G247 , Checking .	Signal current, >1 Amp	Camshaft valve, Commanded on	2 Seconds	Continuous 2 DCY
P0094	Fuel System Leak Detected - Small Leak	Check the Fuel pressure and residual pressure. Refer to → Fuel pressure and residual pressure before high pressure pump , Checking . Check the Fuel Pressure Sensor G247. Refer to → Fuel Pressure Sensor G247 , Checking .	Signal voltage, 3 V	Camshaft valve, Commanded off	2 Seconds	Continuous 2 DCY
P0095	Intake Air Temperature Sensor 2 Circuit	Check the Intake Air Temperature (IAT) Sensor G42. Refer to → Intake Air Temperature (IAT) Sensor G42 , Checking . Check the intake system for leaks (false air). Refer to → Checking Intake System for Leaks .	Signal current, >1 Amp	Camshaft valve, Commanded on	2 Seconds	Continuous 2 DCY