[s-cars] Knock Sensors?

[Sean Douglas]

Adam:

Here is a jpg from a screen shot of Bentley, Knock Sensor #1 is item 24
and KS #2 is item 11. They are hard to see, but KS#1 is just rearward of
where the thermostat sits, I couldn't actually see KS#2, but it about 12
inches away towards the back of the engine.

I believe KS #1 monitors cylinder #2 and KS #2 monitors cylinder #4.

Sean

Sean Douglas
1997 Audi S6//RS2-spec
1990 Audi 90 quattro 20v


> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Adam Cramer
> Sent: Wednesday, May 25, 2005 1:11 PM
> To: s-car-list at audifans.com
> Subject: Re: [s-cars] Knock Sensors?
> 
> 
> Can someone describe where the knock sensor are located?  A
> pic would be great. 
> 
> I checked SJM but I didn't see anything.
> 
> Thanks in advance.
> 
> Adam
> 95 S6 Avant
> 
> On 5/25/05, D Cosby <dccosby at hotmail.com> wrote:
> > Bill,
> > 
> > Once you try a higher octane fuel (or a bunch of octane booster /
> > toluene) to eliminate that avenue, check the torque on the knock 
> > sensors. Apparently they can loosen and become overly sensitive.
> > 
> > Was talking to a mechanic friend a few years ago about a similar
> > problem... He was telling me about a really tricky customer 
> car (think
> > it was an Audi
> > 90) with a similar problem. After eliminating the obvious,
> it turned out
> > that at a certain RPM there was a loose exhaust shield (or
> bracket?) that
> > would rattle and be picked up by the knock sensor. Long
> shot but worth a
> > look after all else fails.
> > 
> > Good luck.
> > Dwayne
> > 
> > 
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