16711 - Knock Sensor 1 (G61): Signal too Low on 1.8T

   #1  

vdubdezl

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I have an 01 Jetta Wolfsburg 1.8T with 5MT. I have a 16711 - Knock Sensor 1 (G61): Signal too Low code and I am lost as to what to due next. I first torqued the sensor without change. I then bought another sensor and replaced it. Mine has only 2 wires since it is a manual. I thought the "knock" was caused by a misfire so I changed all of the plugs. I called VW and the previous owner(I just bought it used from a lot) had the warranty done on the coil packs and they look new. I replaced the fuel filter also. What should I do next? I have researched it for about 3 weeks now and I'm stumped. The only code I have is for this. Could it possibly be a bad fuel pump? Also, when I speed up it sputters badly. It is so bad, that when at night with the headlights on, it shakes them badly. The engine makes no knocking noise revved up sitting still. It sounds great in my garage, but when I drive it, it starts in 2nd, worse in 3rd, bad in 4th, and really bad in 5th. Any ideas???
 
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Jack@European_Parts

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It would be a good idea to post the full auto-scan.

I would monitor the pump and regulator for proper function and volume tested along with MAF is suspect FOD.
 
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vdubdezl

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It would be a good idea to post the full auto-scan.

I would monitor the pump and regulator for proper function and volume tested along with MAF is suspect FOD.
okay. What section do I do this under? Is it a certain measuring block number?
 
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Jack@European_Parts

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It is done with a fuel pump tester and volume measuring device.

Verification of MAF part # can be determined with the auto-scan.
 
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vdubdezl

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Here is the latest scan that is currently on the car with the knock sensor code.

Code:
Tuesday,29,April,2014,20:32:41:29190
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0 (x64)
Data version: 20140212


VIN:    License Plate: IBM620
Mileage: 120867   Repair Order: 



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


                Address 01: Engine       Labels: 06A-906-032-AWW.lbl
Control Module Part Number: 06A 906 032 DL
  Component and/or Version: 1.8L R4/5VT     G   0003
           Software Coding: 07500
            Work Shop Code: WSC 00066  
                      VCID: 6BD52F3319F7F6465E5-515C
1 Fault Found:

16711 - Knock Sensor 1 (G61) 
            P0327 - 35-00 - Signal too Low

Readiness: 0000 1001
 
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   #6  

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Here is another scan before the other one with all of the codes on the whole car for reference. I had to repair the wiring harness to make the speedometer work. I then cleared the codes and got only the knock sensor code back. Hopefully this is relevant.

Code:
Saturday,26,April,2014,12:01:29:29190
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0 (x64)
Data version: 20140212


VIN:    License Plate: IBM620
Mileage: 194510km-120862mi   Repair Order: 



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


Chassis Type: 9M - VW Jetta IV (1998 > 2014)
Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
          75 76
 
   Mileage: 194510km/120862miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06A-906-032-AWW.lbl
   Part No: 06A 906 032 DL
   Component: 1.8L R4/5VT     G   0003  
   Coding: 07500
   Shop #: WSC 00066  
   VCID: 6BD52F3319F7F6465E5-5140

3 Faults Found:
16711 - Knock Sensor 1 (G61) 
            P0327 - 35-00 - Signal too Low
16885 - Vehicle Speed Sensor 
            P0501 - 35-00 - Implausible Signal
18010 - Power Supply Terminal 30 
            P1602 - 35-10 - Voltage too Low - Intermittent
Readiness: 0000 0100

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ASR.lbl
   Part No: 1C0 907 379 D
   Component: ASR FRONT MK60      0103  
   Coding: 0018945
   Shop #: WSC 00066 000 00000
   VCID: 2B55EF33897736461E5-5140

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 6Q0 909 605 F
   Component: 04 AIRBAG VW6  0202 0004  
   Coding: 12340
   Shop #: WSC 00066  
   VCID: 3A7BDA77262D9FCE953-515C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
   Part No: 1J0 920 905 J
   Component: A4-KOMBIINSTR. VDO V53   
   Coding: 07232
   Shop #: WSC 52684  
   VCID: 2E53E627EA65436E39B-515C

   Subsystem 1 - Part No: IMMO
   Component: IDENTNR: VWZ7Z0A3478498         
   IMMO-IDENTNR: VWZ7Z0A3478498       

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 00066  
   VCID: F0EFB85FB0D1959EEB7-515C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1J0-959-799.lbl
   Part No: 1J0 959 799 AJ
   Component: 61 Zentral-SG Komf. 0001  
   Coding: 04096
   Shop #: WSC 00066  
   VCID: 8603FE87A255AB2E21B-4B1E

   Subsystem 1 - Part No: 1J1959801C
   Component: 61 Tõrsteuerger. FS0002r  

   Subsystem 2 - Part No: 1J1959802D
   Component: 61 Tõrsteuerger. BF0002r  

   Subsystem 3 - Part No: 1J4959811C
   Component: 61 Tõrsteuerger. HL0002r  

   Subsystem 4 - Part No: 1J4959812C
   Component: 61 Tõrsteuerger. HR0002r  

2 Faults Found:
00943 - Heated Exterior Mirror; Driver Side (Z4) 
            35-00 - -
00944 - Heated Exterior Mirror; Passenger Side (Z5) 
            35-00 - -

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1J0-035-18x-56.lbl
   Part No: 1JM 035 157 A
   Component:  Radio DE2         0005  
   Coding: 02043
   Shop #: WSC 11100  
   VCID: 3E73D6673A05B3EEA9B-51F0

No fault code found.

End   ---------------------------------------------------------------------

Address 01: DTCs cleared
 
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   #7  

Jack@European_Parts

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AWW 06A-906-461L or LX for MAF

Check wiring from knock sensor to engine ecu.
Knock sensor could be faulty or incorrect TQ/contamination between surface of sensor or possible bad engine ecu.
 
   #8  

vdubdezl

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I torqued the sensor when I replaced it. I read that it is supposed to have an AWW but my sticker says it's an AWP. Would that be the same part number for the MAF? The block was very clean before I put the sensor on.
 
   #10  

vdubdezl

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verified MAF is correct. I don't know what pin numbers the ECM uses for the knock sensor so I will have to find them since I can't pay for a Bently right now. Do the wires from the knock sensor run to the connector behind the battery? I know that is where the VSS ran to and that is where I repaired the wire for it.
 
   #12  

vdubdezl

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AWW 06A-906-461L or LX for MAF

Check wiring from knock sensor to engine ecu.
Knock sensor could be faulty or incorrect TQ/contamination between surface of sensor or possible bad engine ecu.
I finally got time to get back to this today and checked the wiring to ECM. I pulled everything apart to get to the ECM pins and had no continuity. I pulled the plastic lock (the piece from the connector to the wire loom) off and both wires were pulled out of the connector. I had pulled on it before and they were tight. So I got them out, soldered them in, and reinstalled everything. I test drove it with no CEL on, but it still has the sputtering issue. I have an extra MagnaFlow cat I bought for another car that I might try as a possible solution.
 
   #13  

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Is there any misfires during sputter in VCDS 0x01-08-014 ?

Check or run enhanced grounds to the coil packs.

Check grounds at ECU and under battery mount cover.
 
   #14  

vdubdezl

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Is there any misfires during sputter in VCDS 0x01-08-014 ?

Check or run enhanced grounds to the coil packs.

Check grounds at ECU and under battery mount cover.
Checked the grounds under battery and at ECM when I had both apart.
I can see the ground wires cracking near the coil packs.
How do I check this VCDS 0x01-08-014? Is this a measuring block I can look at?? I'm just not familiar with this.
 
   #16  

vdubdezl

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Thanks guys. This is very helpful!
 
   #17  

vdubdezl

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Ran the test tonight and this is what I have now. Not an active code, but still in there. It never made the CEL come on from this. Also, when I was looking for the misfires, it showed the engine load at 123% wide open in 5th at 60. It also showed a misfire detected on cyls 1, 2, & 3, but didn't keep it in the log. I guess I will have to troubleshoot this code now.

Tuesday,27,May,2014,19:14:55:29190
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0 (x64)
Data version: 20140212


VIN: License Plate: WOLFSBURG
Mileage: 121724 Repair Order: 4

Address 01: Engine Labels: 06A-906-032-AWW.lbl
Control Module Part Number: 06A 906 032 DL
Component and/or Version: 1.8L R4/5VT G 0003
Software Coding: 07500
Work Shop Code: WSC 00066
VCID: 6BD52F3319F7F6465E5-515C
1 Fault Found:

17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 35-10 - - Intermittent

Readiness: 0000 0001

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Address 01: Engine (06A 906 032 DL)

19:14:17 Group 014: Ignition (Misfire Recognition)
760 /min Engine Speed
27.1 % Engine Load
0 Misfire (total)
Enabled Misfire recognition

19:14:17 Group 015: Misfire Recognition
0 Cylinder 1
0 Cylinder 2
0 Cylinder 3
Enabled Malfunction Recognition

19:14:17 Group 016: Misfire Recognition
0 Cylinder 4
Bin. Bits
 
   #18  

Jack@European_Parts

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Ok you have a boost leak......log block 0x01-08-115 look at request vs actual
Look for torn pipes cracked/boots torn, intercooler and go find the leak, bad waste-gate, N75 noid or faulty DV valve or the controller via the noid under intake for the diverter.

Foaming glass cleaner and a rev of engine helps find leaks.

You are also in need of firmware update.......
 
   #19  

vdubdezl

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Ok you have a boost leak......log block 0x01-08-115 look at request vs actual
Look for torn pipes cracked/boots torn, intercooler and go find the leak, bad waste-gate, N75 noid or faulty DV valve or the controller via the noid under intake for the diverter.

Foaming glass cleaner and a rev of engine helps find leaks.

You are also in need of firmware update.......
Thanks for the info and will update my firmware also. I have checked for boost leaks a few weeks back when it blew off the boost hose right in front of the tire. I made up a pressure regulator and pressurized the intake side like several people have on vwvortex. I found several other leaks and repaired them, but won't hurt to check again. Maybe the wastegate. I might try checking it with my Mighty-vac.
 
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