Gary;
        I monitor the O2 output with a ten LED bargraph gadget I built.
During closed loop operation it shows me fully rich output at WOT.
        Put yours back in closed loop and see what you get.

Drive Safely & Good Luck
Ken Lewis    <Kernersville,NC>
86 VW crewcab;60 356B Coupe
--------------------------------------------------

On Mon, 13 Nov 2000 20:18:48 -0500 Gary Stearns <gstearns@SPRINTMAIL.COM>
writes:
>This is a multi-part message in MIME format.
>
>------=_NextPart_000_0035_01C04DAE.EE5574C0
>Content-Type: text/plain;
>        charset="iso-8859-1"
>Content-Transfer-Encoding: quoted-printable
>
>Hi-
>Over the weekend I received a response to my question about Digi- =
>operating specs from Mark Keller.  Seems he has been running his WBX
>in =
>open loop with a voltmeter on the O2 sensor as I have.  While I was
>out =
>taking the kids to see grandma, I saw that on a high speed uphill with
>=
>foot on the floor the  voltmeter dropped to 0.00; mixture drastically
>=
>leaning out.  Got home still pondering this, checked e-mail  and found
>=
>that Mark had written me about his finding that at wide open throttle
>=
>(WOT) the standard fuel pressure regulator can't keep up with what the
>=
>engine needs.  He says that he acted on R. Lilley's recommendation to
>=
>install a performance adjustable fuel pressure regulator with great =
>results. Apparently the stock regulator "tops out" before the engine
>has =
>all that it needs. Seems they got their improved regulators  from CB =
>Performance  http://www.cbperformance.com/.  Ever been at nearly full
>=
>throttle and then floored it for the last oomph?  If nothing happens,
>=
>chances are that you're running out of fuel.  The ECU says "more"  the
>=
>regulator says "that's all there is". When  the ECU says more to a  Hi
>=
>Perf. regulator, it says "OK, how much?"  I am going to try this.
>I'll =
>report on the results.=20
>
>Gary
>
>------=_NextPart_000_0035_01C04DAE.EE5574C0
>Content-Type: text/html;
>        charset="iso-8859-1"
>Content-Transfer-Encoding: quoted-printable
>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML><HEAD>
><META content=3D"text/html; charset=3Diso-8859-1" =
>http-equiv=3DContent-Type>
><META content=3D"MSHTML 5.00.2614.3401" name=3DGENERATOR>
><STYLE></STYLE>
></HEAD>
><BODY bgColor=3D#ffffff>
><DIV><FONT size=3D2>Hi-</FONT></DIV>
><DIV><FONT size=3D2>Over the weekend I received a response to my =
>question about=20
>Digi- operating specs from Mark Keller.&nbsp; Seems he has been
>running =
>his WBX=20
>in open loop with a voltmeter on the O2 sensor as I have.&nbsp; While
>I =
>was out=20
>taking the kids to see grandma, I saw that on a high speed =
>uphill&nbsp;with foot=20
>on the floor the  voltmeter dropped to 0.00; mixture drastically
>leaning =
>
>out.&nbsp; Got home&nbsp;still pondering this,&nbsp;checked e-mail
>and =
>found=20
>that Mark had written me about his finding that at&nbsp;wide open =
>throttle (WOT)=20
>the standard fuel pressure regulator&nbsp;can't keep up&nbsp;with what
>=
>the=20
>engine needs.&nbsp;&nbsp;He says that he acted on&nbsp;R. Lilley's=20
>recommendation to install&nbsp;a performance adjustable fuel pressure
>=
>regulator=20
>with great results. Apparently the stock regulator "tops out" before
>the =
>engine=20
>has all that it needs. Seems they&nbsp;got their&nbsp;improved =
>regulators  from=20
>CB Performance &nbsp;<A=20
>href=3D"http://www.cbperformance.com/">http://www.cbperformance.com/</A>.=
>&nbsp;=20
>Ever&nbsp;been at nearly full&nbsp;throttle and then&nbsp;floored it
>for =
>
>the&nbsp;last oomph?&nbsp; If nothing happens, chances are that you're
>=
>running=20
>out of fuel.&nbsp; The&nbsp;ECU says&nbsp;"more"&nbsp; the regulator =
>says=20
>"that's all there is".&nbsp;When  the ECU says more=20
>to&nbsp;a&nbsp;&nbsp;Hi&nbsp;Perf. regulator,&nbsp;it says "OK, how =
>much?"&nbsp;=20
>I am going to try this.&nbsp; I'll report on the results.
></FONT></DIV>
><DIV>&nbsp;</DIV>
><DIV><FONT size=3D2>Gary</FONT></DIV></BODY></HTML>
>
>------=_NextPart_000_0035_01C04DAE.EE5574C0--

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