Knock Sensor Light and Alarm problems...

Jake Kooser jake_k at attglobal.net
Fri Feb 9 12:53:04 GMT 2001


Check the diodes.  The anode is the arrow on schematic diagrams.  If you're
like me, you probably tossed the package as soon as you opened them.  In
that case, the black band on one end of the diode is the anode, IFIRC.

Jake Kooser

> -----Original Message-----
> From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Rex Weatherford
> Sent: Thursday, February 08, 2001 12:37 PM
> To: gmecm at diy-efi.org
> Subject: Re: Knock Sensor Light and Alarm problems...
>
>
>
> ----- Original Message -----
> From: <jkooser at impsat.com>
> To: <gmecm at diy-efi.org>
> Sent: Thursday, February 08, 2001 10:25 AM
> Subject: RE: Knock Sensor Light and Alarm problems...
>
>
> > I just built one and I was able to see the LED blink and the alarm chirp
> > when I hit the test button.  No ECM, no connections other than a battery
> > charger for power.  Check your jumpers and make certain they are all
> > connected correctly.  That was the real tricky part of building the
> circuit
> > for me.
> >
> > Jake Kooser
> > Field Engineer
> > Impsat USA
> > Tel: 1-954-779-7171, Ext. 3250
> > jkooser at impsat.com
>
> I did that..  I'm wondering if I have one of the electrical devices in
> backwards.. If one of them is backwards then which one would cause the
> problem I was having??  (no test, but a beep when power is first applied)
>
> Rex <- Confused.. Perhaps we'll start over..
>
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