Re: LT5 Info.., and 1228331 stuff in general.

["TK" <terryk@foothill.net>]

Wouldn't the resistor also change the divider voltage and potentially cause
a quad driver error?

TK
----- Original Message -----
From: Ken Kelly <kenkelly@lucent.com>
To: <gmecm@efi332.eng.ohio-state.edu>
Sent: Thursday, January 20, 2000 12:51 PM
Subject: Re: LT5 Info.., and 1228331 stuff in general.


> A one or two watt resistor would make no sense. This is a
> very low voltage and low current circuit, so an 1/8th watt
> resistor should work. All it does is load the sensor so it's
> output is reduced. The lower the resistor value, the less
> output you will see from the sensor.
>
> Ken
>
> Team ZR1 wrote:
> >
> > This is going back to about 1995, Tim Holland, then the project manager
> > for the LT-5 at Lotus told me
> > the knock circuit had a design flaw and they were going to fix it with a
> > resistor but G.M killed off the ZR-1
> > so nothing was done. The circuit is runnig too close to the designed
> > edge and because of that false knocks are picked up, esp
> > if exhaust changes were done and the pipe was bouncing a bit under high
> > torque launching or frame flexing
> > He told me the resistor value but I forgot what the resistance value was
> > but remember it was a 1 or 2 watt size.
> >
> > John
> >
> > Squash wrote:
> >
> > > You replace the knock sensor with the resistor.  I
> > > would imagine that it emulates a knock sensor that
> > > isn't detecting any knocks.
> > >
> > > The question is...  How do you plug such a big hole
> > > with a small resistor?  Must have to use a 1 watt
> > > model.
> > >
> > > Squash
>

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