1990 90 20V q Knock Sensor

[Iain Atkinson]

As far as i can tell it only retarded the timing when the car was doing say
80 mph and on a trailing throttle it has a hesitancy about it above 4k rpm
it's fine pulls all the way to the red line, i have now put the old one back
in and it seems fine apart from the original problem. Oh and what a pain it
is to get at it my hands are now all nicely chewed up even wearing plastic
gloves.

Looking at the wiring digrams for the car it appears to have 2 knock
sensors, one that is actually screwed into the block with a thread on the
sensor itself, the other one i can't find right now it must be buried by
other stuff that i am loathe to remove today as i need the car tomorrow.

Thanks

Iain

-----Original Message-----
From: Dave K. [mailto:desmo888 at comcast.net]
Sent: 28 December 2002 15:28
To: Iain Atkinson; quattro at audifans.com
Subject: Re: 1990 90 20V q Knock Sensor


Did it only retard the timing occasionally before?  May be that your new
sensor is bad.

Dave K.
'90 CQ

----- Original Message -----
From: "Iain Atkinson" <iain.atkinson at tesco.net>
To: <quattro at audifans.com>
Sent: Saturday, December 28, 2002 6:42 AM
Subject: 1990 90 20V q Knock Sensor


> Hi folks
>
> just replaced the knock sensor on my car this morning, now it runs really
> flat all hesitant and couldn't pull the skin off a rice pudding. Any
advice
> what to do next??? Do i need to get the fault memory erased?? previously
it
> was showing a "sporadic knock sensor fault" which is why i replaced it.
>
> The only other thing to say is that the wiring was too short to attach
> underneath the plug on the bulkhead so i have now cable tied it securely
out
> of harms way. The part is the correct one as i have double checked it on
the
> family album.
>
>
> TIA
>
>
> Iain
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