re. Tips on replacing the rear knock sensor?

Ben Swann benswann at
Wed May 31 13:15:54 EDT 2006



A crows foot wrench and extension will likely be the trick - they sur don't
give much room to work in this area and even R&R cap and rotor is a PITA.


If the sensor is not obviously damaged and the braided sheild is not cut,
I'd just tape it - maybe use some silicone or liquid electrical tape with
the tape wrap.  There are some good rubber stretch tapes too.   Unless the
sheild or wiresare damaged, you'll gain nothing by replacing an old working
sensor with a new one.  Just keep the old one going.  BTDT on the 10V KS,
but same as on the 20V.



benswann at

83 urq, /[][] =oooo= [][]\ alpine and Inga

'90 Coupe Quattro (==\ oooo /==) ES2 Conversion

91 200qa20v, [ =!\=oooo=/!= ] avant and sedan


[Date: Wed, 31 May 2006 10:39:16 -0400

From: Peter Schulz <pcschulz at>

Subject: Tips on replacing the rear knock sensor?

To: 200q20v at


Any BTDTs?


The access is rather poor, and I would like to avoid removing the intake
manifold if possible ;-)..


And to answer the why question, trying to resolve intermittent power loss on
the indigo wagon

- no knock sensor code, but the sensor insulation is crumbling off at the
sensor end of the cable.


-Peter Schulz

Chelmsford Ma, USA]


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