[V8] About Knock Sensors

David Head v8q at bellsouth.net
Wed Aug 20 08:49:42 EDT 2003


You might try talking to Scott Mockrey, Uwe Ross or like APR...

David Head wrote:

> I was thinking on that. There are 3 wires but there doesn't appear to be
> power associated with these. Pin 30 on the ECU is ground for both, 11
> and 29 are the inputs. According to the book it detects 'no signal'. You
> would need to first try grounding pin 30 and get a o'scope on one of the
> inputs to see what one of them puts out.
> FYI it retards the timing 16 degrees and enriches the mixture... (11
> degrees on a 200 20V).
> Ingo Rautenberg wrote:
>
>> Dave,
>>
>> Thanks for the insight.  But does anyone know if there's a way to
>> fool the
>> ECU that the knock sensors are functioning/connected?
>>
>> -Ingo
>>
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>
>
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