[Diy_efi] WB02 help, heater circuit not working

Sat Nov 2 17:13:04 GMT 2002

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If you have 13V across the LED then it's reverse biased.  Which is =
incorrect for the correct operation of the LED.
It should have ~1.2V maybe more (depends on manufacturer, colour, and =
everything else).
  ----- Original Message -----=20
  From: john and kim larkin=20
  To: diy_efi at diy-efi.org=20
  Sent: Saturday, November 02, 2002 1:30 PM
  Subject: [Diy_efi] WB02 help, heater circuit not working

  I hook the power to J3 and grd to J4.  LED won't light up.  I do have =
13v to one side of the LED and the other side has continuity to ground.  =
Not sure what I'm doing wrong.  The UEGO circuitry worked perfectly to =
spec.  I'm just in the testing phase.

  Thanks.
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<DIV><FONT face=3DArial size=3D2>If you have 13V across the LED then =
it's reverse=20
biased.&nbsp; Which is incorrect for the correct operation of the=20
LED.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>It should have ~1.2V maybe more =
(depends on=20
manufacturer, colour, and everything else).</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Djohnkiml at earthlink.net =
href=3D"mailto:johnkiml at earthlink.net">john and=20
  kim larkin</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Ddiy_efi at diy-efi.org=20
  href=3D"mailto:diy_efi at diy-efi.org">diy_efi at diy-efi.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, November 02, =
2002 1:30=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Diy_efi] WB02 help, =
heater=20
  circuit not working</DIV>
  <DIV><BR></DIV>
  <DIV><FONT size=3D2>I hook the power to J3 and grd to J4.&nbsp; LED =
won't light=20
  up.&nbsp; I do have 13v to one side of the LED and the other side has=20
  continuity to ground.&nbsp; Not sure what I'm doing wrong.&nbsp; The =
UEGO=20
  circuitry worked perfectly to spec.&nbsp; I'm just in the testing=20
  phase.</FONT></DIV>
  <DIV><FONT size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT size=3D2>Thanks.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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