Why does my car feel more responsive after a fault code reset?

   #21  

kpm

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Hi, sorry for delay life got in the way as it often does. Here is full auto scan. I read about fuel trims, but I can't find them in advanced measuring values under 'fuel','obd','oxygen','lambda'. Are they in the engine module? What are they called?

Code:
Saturday,26,September,2020,17:37:52:42375
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com


--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8V-AU37 (5Q0)
Scan: 01 03 08 09 10 15 16 17 19 42 44 52 55 5F BB BC

VIN: WAUZZZ8V   Mileage: 208083km-129296miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
BB-Door Rear Drv -- Status: OK 0000
BC-Door Rear Pass -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CUNA)       Labels:. 04L-907-309-V1.clb
   Part No SW: 04L 906 021 EP    HW: 04L 907 309 A
   Component: R4 2,0L EDC   H22 7539 
   Revision: 81H22---   
   Coding: 02190012032501082000
   Shop #: WSC 29392 003 1048576
   ASAM Dataset: EV_ECM20TDI01104L906021EP 002008
   ROD: EV_ECM20TDI01104L906021AE.rod
   VCID: 77ABE8D7FF471CC3639-8022

No fault code found.
Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 5Q0-907-379-IPB-V1.clb
   Part No SW: 5Q0 907 379 L    HW: 5Q0 907 379 G
   Component: ESC           H31 0471 
   Revision: 00000000    Serial number: 62004000002468
   Coding: 12F18AA234230A74017E060241CB2948512C5080608294F4026100788608
   Shop #: WSC 29392 003 1048576
   ASAM Dataset: EV_Brake1UDSContiMK100IPB 033001
   ROD: EV_Brake1UDSContiMK100IPB_033.rod
   VCID: 45D7521FF52BBE53215-8010

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (E87)       Labels:| 8V0-820-043.clb
   Part No SW: 8V0 820 043 D    HW: 8V0 820 043 D
   Component: AC Automat    H13 0052 
   Revision: 20026000    Serial number: 00000000387850
   Coding: 03100104002000011000000000001100
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_AirCondiFrontVaAU37X 008020
   ROD: EV_AirCondiFrontVaAU37X.rod
   VCID: 33331CC7ABBF30E39F1-8066

   Relative humidity sensor in fresh air intake duct:
   Subsystem 1 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: 0319CD37000000000001

1 Fault Found:
329988 - Motor for Defroster Flap
          B1090 71 [008] - Actuator stuck
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 68
                    Mileage: 207069 km
                    Date: 2020.08.27
                    Time: 09:53:45

                    Voltage terminal 30: 11.7 V
                    Interior temperature: 15.4 °C
                    Outside air temperature: 17 °C
                    Defroster flap: specified value: 35
                    Defroster flap: actual value: 0
                    Defroster flap: actual value: 0.0 %


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:| 5Q0-937-08X-HV1.clb
   Part No SW: 5Q0 937 084 AJ    HW: 5Q0 937 084 AJ
   Component: BCM MQBAB H   H18 0134 
   Serial number: 01011419804312
   Coding: 07040A46C24322FD03844004B31C07A80000000000000000000000000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_BCMCONTI 013000
   ROD: EV_BCMBOSCH_013.rod
   VCID: 0059830BAA895B7B523-8054

   Control Unit For Wiper Motor:
   Subsystem 1 - Part No SW: 8V2 955 119 A    HW: 8V2 955 119   Labels: 5QX-955-119-V1.CLB
   Component: WWS370 140713  041 0580
   Serial number:         140716220904
   Coding: 0A47F7

   Rain Light Recognition Sensor:
   Subsystem 2 - Part No SW: 8U0 955 559 C    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0004
   Serial number: 63282863           
   Coding: 02006C

   Light switch:
   Subsystem 3 - Part No SW: 8V0 941 531 AE    HW: 8V0 941 531 AE
   Component: E1 - LDS MQB  H05 0032
   Serial number: 26 01 2016  00001031

   Sensor For Anti Theft Alarm System:
   Subsystem 4 - Part No SW: 8V0 951 177     HW: 5Q0 951 172
   Component: Sensor, DWA  005 0315
   Serial number: 000000000ZY141681KG4

   Alarm horn:
   Subsystem 5 - Part No SW: 5Q0 951 605     HW: 5Q0 951 605
   Component: Sirene, DWA  004 0311
   Serial number: 00000000000030264090

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J791)       Labels:| 5Q0-919-283.clb
   Part No SW: 5Q0 919 283 E    HW: 5Q0 919 283
   Component: PARKHILFE 4K  H10 0051 
   Revision: --------    Serial number: 39231420400990
   Coding: 0000050001
   Shop #: WSC 29392 003 104857
   ASAM Dataset: EV_EPHVA14AU3700000 002022
   ROD: EV_EPHVA14AU3700000_002_VW37.rod
   VCID: 3B2334E783EFF8A3471-806E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5Q0-959-655.clb
   Part No SW: 5Q0 959 655 N    HW: 5Q0 959 655 N
   Component: AirbagVW20    011 0361 
   Serial number: 003M2R07T4KS
   Coding: 98CCC0000C0000005C5400CA00C800000065
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_AirbaVW20SMEVW37X 002126
   ROD: EV_AirbaVW20SMEVW37X_VW48.rod
   VCID: 4BC36427D34F4823F71-801E

   Side Sensor Driver Front:
   Subsystem 1 - Part No SW: -----------    HW: 480 001 607 14
   Component: SideSensor_Df  001 0887
   Serial number: 357670000003EAD0001Q
   Coding: 2D2D2D

   Side Sensor Passenger Front:
   Subsystem 2 - Part No SW: -----------    HW: 480 001 607 14
   Component: SideSensor_Pf  001 0887
   Serial number: 35867000000DDAD0001-
   Coding: 2D2D2D

   Side Sensor Driver Rear:
   Subsystem 3 - Part No SW: -----------    HW: 480 402 107 14
   Component: SideSensor_Dr  001 6149
   Serial number: 3516502C515F3C34B23C
   Coding: 2D2D2D

   Side Sensor Passenger Rear:
   Subsystem 4 - Part No SW: -----------    HW: 480 402 107 14
   Component: SideSensor_Pr  001 6149
   Serial number: 3526502C515F3C324166
   Coding: 2D2D2D

   Front Sensor Driver:
   Subsystem 5 - Part No SW: -----------    HW: 480 401 706 14
   Component: FrontSensor_D  001 6149
   Serial number: 35565029D1697520A136
   Coding: 2D2D2D

   Pedestrian Protection Driver:
   Subsystem 6 - Part No SW: -----------    HW: 480 400 807 14
   Component: PedP_Sensor_D  001 6149
   Serial number: 2286502C11656B83C307
   Coding: 2D2D2D

   Pedestrian Protection Passenger:
   Subsystem 7 - Part No SW: -----------    HW: 480 400 807 14
   Component: PedP_Sensor_P  001 6149
   Serial number: 2296502C11656B8393CH
   Coding: 2D2D2D

   Pedestrian Protection Center:
   Subsystem 8 - Part No SW: -----------    HW: 480 400 807 14
   Component: PedP_Sensor_C  001 6149
   Serial number: 23065029B1656B853287
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5Q0-953-549.clb
   Part No SW: 8V0 953 521 BM    HW: 5Q0 953 549 C
   Component: Lenks. Modul  002 0110 
   Revision: --------    Serial number: 17071408490481
   Coding: A408
   Shop #: WSC 29392 003 1048576
   ASAM Dataset: EV_SMLSKLOMQB 017001
   ROD: EV_SMLSKLOMQB_009_AU37.rod
   VCID: 0655951388AD754B68F-8052

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5G0-920-XXX-17.clb-SRI3
   Part No SW: 8V0 920 971 E    HW: 8V0 920 971 E
   Component: KOMBI         H02 4291 
   Coding: 27A509002B8026000100EA001000000000000000
   Shop #: WSC 29392 003 104857
   ASAM Dataset: EV_DashBoardVDDMQBAB 009040
   ROD: EV_DashBoardVDDMQBAB_009_VW37.rod
   VCID: 3FDB40F797F7E4836B9-806A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 5Q0-907-530-V1.clb
   Part No SW: 5Q0 907 530 T    HW: 5Q0 907 530 F
   Component: GW MQB High   128 1188 
   Revision: --------    Serial number: 0002290549
   Coding: 030100040F0876005B000248080B00000001010000000000000000000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_GatewLear 011016
   ROD: EV_GatewLear_011.rod
   VCID: 42DD4903E405896B047-8016

   Alternator:

   Multi Function Steering Wheel Control Module:
   Subsystem 2 - Part No SW: 8U0 951 528 A    HW: 8U0 951 528 A
   Component: E221 - MFL  H02 0014
   Serial number: 12 07 2014  D0038904

   Battery Monitoring Control Module:
   Subsystem 3 - Part No SW: 5Q0 915 181 E    HW: 5Q0 915 181 E
   Component: J367-BDMHella  H03 8043
   Serial number: 3110563903         

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 5QX-959-X93-42.clb
   Part No SW: 5Q0 959 593 B    HW: 5Q0 959 593 B
   Component: TSG FS        020 0025 
   Serial number: 14071403110089
   Coding: 00108E204001040000001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCUDriveSideEWMAXKLO 006003
   ROD: EV_DCUDriveSideEWMAXCONT.rod
   VCID: 40D9430BEA099B7B123-8014

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 5Q0-909-144.clb
   Part No SW: 5Q0 909 144 P    HW: 5Q0 909 144 P
   Component: EPS_MQB_ZFLS  122 1043 
   Coding: 8103
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_SteerAssisMQB 010031
   ROD: EV_SteerAssisMQB_010.rod
   VCID: 41DF460FE10392731DD-8014

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 5QX-959-X92-52.clb
   Part No SW: 5Q0 959 592 B    HW: 5Q0 959 592 B
   Component: TSG BFS       020 0025 
   Serial number: 12071404080092
   Coding: 001086204C01040000001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCUPasseSideEWMAXKLO 006003
   ROD: EV_DCUPasseSideEWMAXCONT.rod
   VCID: 3FDB40F797F7E4836B9-806A

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:| 5Q0-907-357.clb
   Part No SW: 5Q0 907 357     HW: 6R0 907 357 A
   Component: LWR-ECU       005 0080 
   Revision: --------    Serial number: --------------
   Coding: 019C000001000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_HeadlRegulVWLWRMQB 001110
   ROD: EV_HeadlRegulVWLWRMQB.rod
   VCID: 75B7E2DFE54B6ED3715-8020

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 8V0-035-MIB-STD1.clb
   Part No SW: 8V0 035 874 B    HW: 8V0 035 874 B
   Component: MU-S-ND-ER    041 0420 
   Serial number: A7F01907140514
   Coding: 01730301FF0A000021111101000A00002F0004460100010006
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_MUStd4CPASE 002018
   ROD: EV_MUStd4CPASE_VW37.rod
   VCID: 3B2334E783EFF8A3471-806E

   Data medium:
   Subsystem 1 - Part No SW: 8V0 919 866 B    HW: -----------
   Component:  ECE 2014  --- 0036
   Serial number: --------------------

   Display unit 1 for multimedia system:
   Subsystem 2 - Part No SW: 8V0 919 603 C    HW: 8V0 919 603 C
   Component: DU Std  H49 0013
   Serial number: AUZ8Z9EY304V8J     

   Multimedia Operating Unit:
   Subsystem 3 - Part No SW: 8V0 919 614 P    HW: 8V0 919 614 P
   Component: ControlUnit_B  H41 0054
   Serial number: C1000007061400020173

No fault code found.

-------------------------------------------------------------------------------
Address BB: Door Rear Drv (J388)       Labels:* None
   Part No SW: 5Q0 959 595 B    HW: 5Q0 959 595 B
   Component: TSG HFS       020 0025 
   Serial number: 11071401100167
   Coding: 000086204001040000001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCURearDriveMAXKLO 006003
   ROD: EV_DCURearDriveMAXCONT.rod
   VCID: 42DD4903E405896B047-8016

No fault code found.

-------------------------------------------------------------------------------
Address BC: Door Rear Pass (J389)       Labels:* None
   Part No SW: 5Q0 959 595 B    HW: 5Q0 959 595 B
   Component: TSG HBFS      020 0025 
   Serial number: 11071402090166
   Coding: 000086204001040000001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCURearPasseMAXKLO 006003
   ROD: EV_DCURearPasseMAXCONT.rod
   VCID: 42DD4903E405896B047-8016

No fault code found.

End----(Elapsed Time: 01:27, VBatt start/end: 12.3V/11.9V. VIgn 11.9V)-----
Thanks, Kris
 
   #22  

Uwe

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Since you had not posted an Auto-Scan when you originally asked this question, I did not realize you had a diesel engine. The concept of "fuel trim" doesn't apply to diesels.

Gasoline engines control power by controlling airflow using a throttle and then the engine management provides an appropriate amount of fuel, which is "trimmed" based on feedback from various sensors, primarily the oxygen sensor(s) in the exhaust.

Diesel engines do not control power by restricting airflow using a throttle. The control power by controlling the amount of fuel injected. Traditionally, they had completely unrestricted airflow, but this resulted in lots of excess air under part-load conditions and thus high NOx emissions. So what they do now is to substitute oxygen-depleted exhaust gasses for air to try to minimize those NOx emissions, but they still don't trim fuel; instead they effectively trim air.

However, diesels have various other "learned values" that are cleared/reset when you clear fault codes.

-Uwe-
 
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