My car has P0171 which is system too lean. An I don't know how to solve that problem. I use the scanning app check the data, but I don't understand what it means. Anyone could help me analyze where is the problem? This is the data of the car. Thanks.


Movi

2013-05-27 10:58:28
Make: Audi
Port: usbserial-A400gWkM Chip: ELM327 v1.4 OBD: AUTO, ISO 15765-4 (CAN 11/500) VIN: WAUGN74F17N134727

Diagnostic Trouble Codes
Code Description Retrieval Time
P0171 System too Lean (Bank 1) 2013-05-27 10:58:20
P0171 System too Lean (Bank 1) (Pending) 2013-05-27 10:58:20

Freeze Frame Data
PID Description Value Units Retrieval Time
00 PIDs supported 1-20 7F 9F C0 03 2013-05-27 10:58:01
02 Freeze frame trouble code P0171 2013-05-27 10:58:01
03 Fuel system status Fuel system #2 - Closed loop, using oxygen sensor feedback to determine fuel mix. Fuel system #1 - Closed loop, using oxygen sensor feedback to determine fuel mix. 2013-05-27 10:58:01
04 Calculated engine load value 58.82 % Percent 2013-05-27 10:58:02
05 Engine coolant temperature 96.0 Celsius 2013-05-27 10:58:02
06 Short term fuel % trim Bank 1 26199.89 % Percent 2013-05-27 10:58:02
07 Long term fuel % trim Bank 1 29402.02 % Percent 2013-05-27 10:58:02
08 Short term fuel % trim Bank 2 26601.42 % Percent 2013-05-27 10:58:02
09 Long term fuel % trim Bank 2 28602.08 % Percent 2013-05-27 10:58:02
0C Engine RPM 2020 rpm 2013-05-27 10:58:03
0D Vehicle speed 57.79 mph 2013-05-27 10:58:03
0E Timing advance 9 relative to #1 cylinder 2013-05-27 10:58:03
0F Intake air temperature 29.0 Celsius 2013-05-27 10:58:03
10 MAF air flow rate 24.11 g/s 2013-05-27 10:58:03
11 Throttle position 22 Percent 2013-05-27 10:58:04
12 Commanded secondary air status From the outside atmosphere or off 2013-05-27 10:58:04
1F Run time since engine start 207 seconds 2013-05-27 10:58:04
20 PIDs supported 21-40 20 04 20 01 2013-05-27 10:58:04
23 Fuel Rail Pressure (diesel) (gauge) 5600.00 kPa 2013-05-27 10:58:04
2E Commanded evaporative purge 0.00 % Percent 2013-05-27 10:58:05
33 Barometric pressure (Absolute) 96 (Absolute) kPa 2013-05-27 10:58:05
40 PIDs supported 41-60 7E D0 05 00 2013-05-27 10:58:05
42 Control module voltage 13.57 V 2013-05-27 10:58:05
43 Absolute load value 48.24 % Percent 2013-05-27 10:58:05
44 Command equivalence ratio 1.00 N/A 2013-05-27 10:58:06
45 Relative throttle position 11.76 % Percent 2013-05-27 10:58:06
46 Ambient air temperature 29.0 Celsius 2013-05-27 10:58:06
47 Absolute throttle position B 21.96 % Percent 2013-05-27 10:58:06
49 Accelerator pedal position D 33.73 % Percent 2013-05-27 10:58:06
4A Accelerator pedal position E 34.51 % Percent 2013-05-27 10:58:07
4C Commanded throttle actuator 16.08 % Percent 2013-05-27 10:58:07
56 Unknown PID 7F 7F 2013-05-27 10:58:07
58 Unknown PID 7E 7F 2013-05-27 10:58:07

Live Data
PID Description Value Units Retrieval Time
00 PIDs supported 1-20 BF 9F CA 1B 2013-05-27 10:57:55
01 Number of trouble codes MIL ON, 1 trouble code(s) flagged. 2013-05-27 10:57:55
03 Fuel system status Fuel system #2 - Closed loop, using oxygen sensor feedback to determine fuel mix. Fuel system #1 - Closed loop, using oxygen sensor feedback to determine fuel mix. 2013-05-27 10:57:55
04 Calculated engine load value 23.53 % Percent 2013-05-27 10:57:56
05 Engine coolant temperature 76.0 Celsius 2013-05-27 10:57:56
06 Short term fuel % trim Bank 1 25799.13 % Percent 2013-05-27 10:57:56
07 Long term fuel % trim Bank 1 29803.56 % Percent 2013-05-27 10:57:56
08 Short term fuel % trim Bank 2 25397.59 % Percent 2013-05-27 10:57:56
09 Long term fuel % trim Bank 2 28603.64 % Percent 2013-05-27 10:57:56
0C Engine RPM 651 rpm 2013-05-27 10:57:56
0D Vehicle speed 0.00 mph 2013-05-27 10:57:56
0E Timing advance 1 relative to #1 cylinder 2013-05-27 10:57:57
0F Intake air temperature 41.0 Celsius 2013-05-27 10:57:57
10 MAF air flow rate 3.19 g/s 2013-05-27 10:57:57
11 Throttle position 12 Percent 2013-05-27 10:57:57
12 Commanded secondary air status From the outside atmosphere or off 2013-05-27 10:57:57
15 Bank 1 Sensor 2- O2 sensor voltage, Short term fuel trim 0.770 Volts, % 2013-05-27 10:57:57
17 Bank 1 Sensor 4- O2 sensor voltage, Short term fuel trim 0.780 Volts, % 2013-05-27 10:57:57
1C OBD standards this vehicle conforms to OBD and OBD-II 2013-05-27 10:57:57
1D Oxygen sensors present 1-1, 1-2, 2-1, 2-2 Bank-Sensor 2013-05-27 10:57:58
1F Run time since engine start 640 seconds 2013-05-27 10:57:51
20 PIDs supported 21-40 A0 05 B4 19 2013-05-27 10:57:52
21 Distance traveled with malfunction indicator lamp (MIL) on 13 miles 2013-05-27 10:57:52
23 Fuel Rail Pressure (diesel) (gauge) 2940.00 kPa 2013-05-27 10:57:52
2E Commanded evaporative purge 23.14 % Percent 2013-05-27 10:57:52
30 # of warm-ups since codes cleared 0 count 2013-05-27 10:57:52
31 Distance traveled since codes cleared 88 miles 2013-05-27 10:57:52
33 Barometric pressure (Absolute) 97 (Absolute) kPa 2013-05-27 10:57:52
34 O2S1_WR_lambda(1)- Equivalence Ratio, Current 1.00, -0.01 N/A, mA 2013-05-27 10:57:52
36 O2S3_WR_lambda(1)- Equivalence Ratio, Current 1.00, -0.01 N/A, mA 2013-05-27 10:57:53
3C Catalyst Temperature Bank 1, Sensor 1 348.2 Celsius 2013-05-27 10:57:53
3D Catalyst Temperature Bank 1, Sensor 2 367.0 Celsius 2013-05-27 10:57:53
40 PIDs supported 41-60 FE D0 05 00 2013-05-27 10:57:53
41 Monitor status this drive cycle 00 06 65 29, See Onboard Tests 2013-05-27 10:57:53
42 Control module voltage 13.55 V 2013-05-27 10:57:53
43 Absolute load value 19.61 % Percent 2013-05-27 10:57:53
44 Command equivalence ratio 1.00 N/A 2013-05-27 10:57:54
45 Relative throttle position 2.35 % Percent 2013-05-27 10:57:54
46 Ambient air temperature 41.0 Celsius 2013-05-27 10:57:54
47 Absolute throttle position B 12.16 % Percent 2013-05-27 10:57:54
49 Accelerator pedal position D 14.90 % Percent 2013-05-27 10:57:54
4A Accelerator pedal position E 14.90 % Percent 2013-05-27 10:57:54
4C Commanded throttle actuator 3.14 % Percent 2013-05-27 10:57:54
56 Unknown PID 7F 7F 2013-05-27 10:57:54
58 Unknown PID 7E 7F 2013-05-27 10:57:55
MPG Instantaneous Fuel Economy 0 MPG 2013-05-27 10:57:55
BAT Battery Voltage 13.5 Volts 2013-05-27 10:57:55

On-board Tests
Name Available Status
Misfire No
Fuel System Yes Complete
Components Yes Complete
Catalyst Yes Complete
Heated Catalyst No
Evaporative System Yes Complete
Secondary Air System Yes Complete
A/C Refrigerant No
Oxygen Sensor Yes Complete
Oxygen Sensor Heater Yes Complete
EGR System No

 

OBD-II DTC: P0171 System Too Lean (Bank 1)