Knock sensor code, could it be something else? 24v VR6 2003 Jetta GLI

   #1  

ImCoKeMaN

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I got a code for the front Knock sensor, but when checking the measuring blocks I'm not sure if it would show just one cylinder at 0 like this or if something else is wrong:

mbDwN88.png




Code:
VCDS-Lite Version: Release 1.2
Saturday, 16 October 2021, 19:07:01:23266


Chassis Type: 01 - VR6 Jetta
Scan: 01,03,15,17,19,46
 
-------------------------------------------------------------------------------
Address 01: Engine       Labels: 022-906-032-BDF.LBL
   Controller: 022 906 032 CS
   Component: MOTRONIC ME7.1.1G   0005
   Coding: 00032
   Shop #: WSC 00066
   VCID: 5ECF4799C92F
   3VWVH69M73M1xxxxx     VWZ7Z0B5958766
1 Fault Found:
16716 -  Knock Sensor 2 (G66): Signal too Low
            P0332 - 35-00 -   -
Readiness: 0010 1001

-------------------------------------------------------------------------------
Address 03: ABS Brakes       Labels: None
   Controller: 1C0 907 379 M
   Component: ESP FRONT MK60      0102
   Coding: 0019970
   Shop #: WSC 00028
   VCID: 341BC5311723
No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL
   Controller: 1C0 909 605 F
   Component: 04 AIRBAG VW61 0202 0001
   Coding: 12340
   Shop #: WSC 00028
   VCID: 2721227DD6F5
No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments       Labels: 1J0-920-xx5-17.LBL
   Controller: 1J0 920 906 J
   Component: KOMBI+WEGFAHRSP VDO V64
   Coding: 07234
   Shop #: WSC 00000
   VCID: 2F11CA5DFE05
   3VWVH69M73M1xxxxx     VWZ7Z0B5958766
1 Fault Found:
01304 -  Radio
            49-00 -  No Communications

-------------------------------------------------------------------------------
Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL
   Controller: 6N0 909 901
   Component: Gateway K<->CAN    0001
   Coding: 00006
   Shop #: WSC 00028
   VCID: F0938921A3BB
1 Fault Found:
01304 -  Radio
            49-00 -  No Communications

-------------------------------------------------------------------------------
Address 46: Central Conv.       Labels: 1C0-959-799.LBL
   Controller: 1C0 959 799 C
   Component: 1H Komfortgerát HLO 0003
   Coding: 00258
   Shop #: WSC 00028
   VCID: 3701F23D0655
2 Faults Found:
01359 -  Internal Central Locking Switch; Passenger Side (E198)
            27-00 -  Implausible Signal
00931 -  Locking Module for Central Locking; Rear Right (F223)
            27-00 -  Implausible Signal

End   --------------------------------------------------------------------------------------------------
 
   #2  

Uwe

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I'm not sure if it would show just one cylinder at 0 like this or if something else is wrong:
Me either, 'cause I'm not sure what the logic in the ECU is that correlates signal from the two knock sensors to the six cylinders.

If it were mine, the first thing I would do is check that Knock sensor 2 is torqued down properly, and then check the connections to it. Unplug it. Does anything change, either with respect to the fault code, or the measuring values? I'd also apply some contact conditioner to the connectors before plugging them back in.

-Uwe-
 
   #3  

ImCoKeMaN

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If it were mine, the first thing I would do is check that Knock sensor 2 is torqued down properly, and then check the connections to it. Unplug it. Does anything change, either with respect to the fault code, or the measuring values? I'd also apply some contact conditioner to the connectors before plugging them back in.

-Uwe-

Finally got a chance to dig back into this, and seems to be resolved after this process. I unplugged it and readings were lower, plugged back in but not bolted to block changed the readings, then retorqued it and readings for across all but cyl 6 seemed in line. For anyone else with cyl 6 showing as 0.0CF it may not be an issue. Hopefully it will stay happy, but it made it through my whole shakedown run this time and hasn't done that previously even after clearing the code.

Thanks for the support!
 
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