Accelerator position sensor

   #1  

paddyz1

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Help needed please

I have had this issue for about 2 weeks now. I cleared it a few time but keeps coming back.
Last week the car (Scirrocco) let me down and i thought it was the cambelt as there seemed to be no compression.
I got the RAC out and he said all symtoms point to the EGR valve.
I took it off and stripped and cleaned the EGR. I Also cleaned the throttle valve as they are right next to each other.
Car was fine for a 20 mile run but this morning before i set off the code popped up before i even moved the car.
It also is ticking over fast between 1200 and 1400 RPM

Question is, do I have to set up position sensor or do I have to replace the valve (or anything else)?

Thanks guys.


Code:
Wednesday,25,September,2019,10:18:04:40439
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.1.0 (x64)
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WVWZZZ13ZAV437053   License Plate: MA10RZN
Mileage: 255870km-158990mi   Repair Order: 25/09/19



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


Chassis Type: 13-VW36 (1K0)
Scan: 01 03 08 09 10 14 15 16 17 19 25 2E 37 42 44 46 4F 52 55 56
          77

VIN: WVWZZZ13ZAV437053   Mileage: 255870km-158990miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
14-Susp. Elect. -- 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
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
37-Navigation -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
77-Telephone -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (CBD)       Labels: 03L-906-022-CBA.clb
   Part No SW: 03L 906 022 KD    HW: 03L 906 022 G
   Component: R4 2,0L EDC 0000SG  6166  
   Revision: 13H03---    Serial number:               
   Coding: 0001072
   Shop #: WSC 00020 790 00000
   VCID: 71E9A7EF6834EDC766-8024

1 Fault Found:
008504 - Accelerator Position Sensors (G79) / (G185) 
               P2138 - 000 - Implausible Correlation - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 2
                    Fault Frequency: 3
                    Reset counter: 255
                    Mileage: 255835 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    Load: 0.0 %
                    Voltage: 12.08 V
                    Voltage: 0.912 V
                    Voltage: 0.684 V
                    Bin. Bits:  0 00  0

Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 AH    HW: 1K0 907 379 AH
   Component: ESP MK60EC1   H30 0107  
   Revision: 00H30001    
   Coding: 763B40F5492500016E0B02E9921C0082300000
   Shop #: WSC 00020 790 00000
   VCID: 78FF9ACBCB4EBC8FA1-802C

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 5K0-907-044.clb
   Part No SW: 5K0 907 044 BT    HW: 5K0 907 044 BT
   Component: Climatronic   H15 0709  
   Revision: 00003001    
   Coding: 0000000002
   Shop #: WSC 00020 999 00000
   ASAM Dataset: EV_Climatronic A01006
   ROD: EV_ClimaAutoBasis_VW36.rod
   VCID: 7EF38CD3E16A82BFEB-802A

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
   Part No SW: 5K0 937 087 D    HW: 5K0 937 087 D
   Component: BCM PQ35 H    011 0028  
   Revision: BE011001    
   Coding: 4C100A3B9025E10040080080740049E643550B88736D8560648000000000
   Shop #: WSC 00020 790 00000
   VCID: 366354F381DA8AFF73-8062

   Subsystem 1 - Part No: 1K8 955 119 E  Labels: 1KX-955-119.CLB
   Component: Wischer 11011  22  0614 
   Coding: 009795

   Subsystem 2 - Part No: 1K0 955 559 AH  Labels: 1K0-955-559-AG.CLB
   Component: RLS 160210 05  54  0403 
   Coding: 0330ED

   Subsystem 3 - Part No: 1K8 951 171 
   Component: DWA-Sensor 00  001 0104 
   Coding: 000000

   Subsystem 4 - Part No: 1K8 951 605 
   Component: LIN BACKUP HO  H09 9002 
   Coding: 000000

1 Fault Found:
00924 - Relay for Headlamp Cleaning System (J39) 
            009 - Open or Short to Ground
             Freeze Frame:
                    Fault Status: 01101001
                    Fault Priority: 4
                    Fault Frequency: 2
                    Reset counter: 69
                    Mileage: 255812 km
                    Time Indication: 0
                    Date: 2014.02.14
                    Time: 17:56:60

             Freeze Frame:
                        Term 15 On
                    Voltage: 13.90 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:. 1K0-919-475.clb
   Part No SW: 1K0 919 475 K    HW: 1K0 919 475 K
   Component: PARKHILFE     005 1706  
   Revision: 00005000    Serial number: 0 263 004 388 
   Coding: 100001
   Shop #: WSC 00020 790 00000
   VCID: 3A7B40C3B5C26E9F97-806E

No fault code found.

-------------------------------------------------------------------------------
Address 14: Susp. Elect. (J250)       Labels:. 3C0-907-376.clb
   Part No SW: 3C0 907 376 A    HW: 3C0 907 376 
   Component: DAEMPFUNGS-SG H07 0070  
   Revision: 00000000    Serial number: 08021003800002
   Coding: 000180
   Shop #: WSC 00020 790 00000
   VCID: 275D89B75670E377F8-8072

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 AE    HW: 1K0 909 605 AE
   Component: 0H AIRBAG VW8   020 2300  
   Revision: 05020000    Serial number: 003D1D0249DF  
   Coding: 0012360
   Shop #: WSC 00020 790 00000
   VCID: 6FEDA1977E00FB3770-803A

   Subsystem 1 - Serial number: 6332MSME4F04295CM

   Subsystem 2 - Serial number: 6342MSME4E722F78V

   Subsystem 3 - Serial number: 6352QSME3D4C0002B

   Subsystem 4 - Serial number: 6362QSME4E4E4508V

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
   Part No SW: 5K0 953 521 T    HW: 5K0 953 569 D
   Component: LENKS.MODUL   009 0122  
   Revision: FF010035    Serial number: 20100213200752
   Coding: 108A040000
   Shop #: WSC 00020 999 00000
   ASAM Dataset: EV_SMLSNGVOLWS A01002
   ROD: EV_SMLSNGVOLWS.rod
   VCID: 3D714BDFACEC59A7B2-8068

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 5K0 959 542     HW: 5K0 959 542   Labels: 3C8-959-537.CLB
   Component: E221__MFL-TAS  H05 0010 
   Coding: 820000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 1K8 920 971 C    HW: 1K8 920 971 C
   Component: KOMBI         H05 0305  
   Serial number: 00000000000000
   Coding: 470F00
   Shop #: WSC 00020 999 00000
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04052
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 33656DE79AA89FD754-8066

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V4.clb
   Part No SW: 1K0 907 530 AE    HW: 1K0 907 951 
   Component: J533  Gateway   H06 0112  
   Revision:   H06 01    Serial number: 270110F2001357
   Coding: E9A91F06400613004001
   Shop #: WSC 00400 210 83203
   VCID: 6ADBB08345E21E1F27-803E

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H05 0305  
   Serial number:               
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03005
   ROD: EV_Immo_UDS_VDD_RM09.rod
   VCID: 6ADBB0838DE21E1F27-803E

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650)       Labels:. 5N0-035-342.lbl
   Part No SW: 5N0 035 342 B    HW: 5N0 035 342 B
   Component: SG EXT.PLAYER H13 0090  
   Revision: A1001003    Serial number: 7667802176    
   Coding: 010000
   Shop #: WSC 00000 000 00000
   VCID: 264384B3517AFA7FC3-8072

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation (J0506)       Labels:. 1T0-035-680.clb
   Part No SW: 1T0 035 680 P    HW: 1T0 035 680 F
   Component: RNS-MID       H60 5238  
   Revision: AB001001    Serial number: VWZ6Z7L4234015
   Coding: 04000402040000A0000F
   Shop #: WSC 05314 123 12345
   VCID: 3B7545C7BAF857978C-806E

   Subsystem 1 - Part No: 1T0 919 859 B
   Component: EU West V13  8348 

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MAX3.clb
   Part No SW: 1Q0 959 701 H    HW: 1Q0 959 701 H
   Component: Tuer-SG         009 2124  
   Coding: 0016949
   Shop #: WSC 00020 790 00000
   VCID: 39795FCF70C465879E-806C

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 J
   Component: EPS_ZFLS Kl. 179    3001  
   Revision: 00H17000    
   Shop #: WSC 00020 790 00000
   VCID: 316967EFA8B4ADC726-8064

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
   Part No SW: 1K0 907 532     HW: 1K0 907 951 
   Component: EZE_2         H06 0112  
   Revision:   H06 01    Serial number: 270110F2001357
   Coding: 01030100
   Shop #: WSC 00400 210 83203
   VCID: 66C3C4B391FA3A7F03-8032

   Subsystem 1 - Part No SW: 6R0 959 591     HW: 6R0 959 591 
   Component: J245/J878  H04 0054 
   Serial number: 003400000817        
   Coding: 000005

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MAX3.clb
   Part No SW: 1Q0 959 702 H    HW: 1Q0 959 702 H
   Component: Tuer-SG         009 2124  
   Coding: 0016948
   Shop #: WSC 00020 790 00000
   VCID: 3A7B40C375C26E9F97-806E

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 K
   Component: Dynamische LWR  H01 0010  
   Revision: 00000001    Serial number:               
   Coding: 0000016
   Shop #: WSC 00020 790 00000
   VCID: 428B38231D12265FCF-8016

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J0506)       Labels:. 1T0-035-680.clb
   Part No SW: 1T0 035 680 P    HW: 1T0 035 680 F
   Component: RNS-MID       H60 5238  
   Revision: AB001001    Serial number: VWZ6Z7L4234015
   Coding: 04000402040000A0000F
   Shop #: WSC 05314 123 12345
   VCID: 3B7545C7BAF857978C-806E

   Subsystem 1 - Part No: 1T0 919 859 B
   Component: EU West V13  8348 

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone (J412)       Labels:| 3C8-035-730-A.clb
   Part No SW: 3C8 035 730 E    HW: 3C8 035 730 E
   Component: Telefon       025 0983  
   Revision: --------    Serial number: 35502105234355
   Coding: 020100000100010000000101
   Shop #: WSC 54321 321 54321
   ASAM Dataset: EV_UHVPremi 002709
   ROD: EV_UHVPremi.rod
   VCID: 254183BF247CF167CA-8070

No fault code found.

End-------------------------(Elapsed Time: 03:06)--------------------------
 
   #3  

paddyz1

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I was thinking could it be related as the throttle control is after the egr valve. Both were carboned up. Just thought it may have had something to do with it as the egr failed last Friday. Probably a coincidence.
 
   #4  

DrPeter

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Hello,

Question is, do I have to set up position sensor or do I have to replace the valve (or anything else)?

To answer your question, there is a Basic Setting group [123] that is used to perform the "Exhaust Gas Recirculation (EGR) Valve (G212/N18) Adaptation".

- You should not need a "Security Access" code to perform this function.


I would concentrate on the fault code (below). This fault code is concerning the [G79-Accelerator position sender] and [G185-Accelerator position sender 2], which are the two sensors on the pedal assembly.

008504 - Accelerator Position Sensors (G79) / (G185)
P2138 - 000 - Implausible Correlation - MIL ON


Use the Measuring Value Block group [030] to view these two sensors, field 1 (G79) and field 2 (G185). These values must increase or decrease incrementally when the accelerator pedal is depressed.

If operating correctly, the G79 will have an operating range of [0.67v to 4.10v] and the G185's operating range of [0.25v to 2.14v]. Again, these values must increase or decrease incrementally when the accelerator pedal is depressed.




We recommend to use the Official Factory Repair Information for the proper wiring diagrams and component locations.


Hope this helps,

drpeter
 
   #5  

Jack@European_Parts

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If history tells us anything it would be more likely a wiring harness problem vs an actual pedal sensor issue, right guys?

Did you check the wires from pedal sensor to ECU directly OP or for water ingress + corrosion?
 
   #6  

paddyz1

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Thanks guys. I will get to look at it next weekend. I have had one day of no error popping up (it is the glow plug light and resets when ignition is off).
Will report back when further investigations are done.
 
   #7  

Dukedesmo

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I had similar problem on my Son's 2011 Golf 1.4tsi, started out as an intermittent fault but got more frequent and worse. Symptoms were sluggish acceleration, low power and wouldn't rev beyond around 3k.

Reset it a couple of times and it worked OK for a while but in the end I fitted a new accelerator pedal and all has been fine since, here's a link to the scan I posted at the time; https://forums.ross-tech.com/showth...olf-1-4-tsi-accelerator-position-sensor-fault
 
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