[Diy_efi] 1227747 AE question

Karl Walter krw at efn.org
Mon Feb 21 16:12:41 GMT 2005


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MessageAll Right, I guess cheap bums like me need to bite the bullet and =
get a WB o2 monitor. This is another case were switching o2 monitoring  =
just doesn't cut it, am I right?

--Karl
  ----- Original Message -----=20
  From: Fehn, Ron G=20
  To: A list for Do-It-Yourself EFI=20
  Sent: Monday, February 21, 2005 7:51 AM
  Subject: RE: [Diy_efi] 1227747 AE question


  i would suggest that TPS AE is immediate and possibly less duration as =
far as time on.  MAP AE is possibly longer in duration and dependent in =
the MAP sensor "seeing" the need.  i assumed for one season i had =
inadequate AE or PS as i was bogging.  i thought my mods allowed me to =
flow air easier than fuel so i upped AE.  I went too far.  i discovered =
with a WB installed.  i was off the scale at 8.0/1.  i removed =
considerable from AE tables and it is so much better.  need to fine tune =
AE this spring.  AE is difficult to tune IMO as it will not show in =
scanning.
  -----Original Message-----
  From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] =
On Behalf Of Bret Levandowski
  Sent: Friday, February 18, 2005 7:47 PM
  To: diy_efi at diy-efi.org
  Subject: [Diy_efi] 1227747 AE question


  Ok, I figured out my PE bog. Turns out the guy who had practically =
every table set wrong had the spark table way wrong. Anywhere from 3 - =
15 degrees. As far as AE, there is AE Vs MAP and AE Vs TPS, I understand =
that this is a calculated 'pump shot' based on TPS or MAP input. What I =
don't get is why you need both. Is one for 'off the line' and the other =
for sudden stabs while cruising? Do the tables add together? Hope =
someone can give a good detailed answer. The reason I ask is that I have =
a nasty hesitation off the line, but only when the outside temp is below =
60 deg F and I'm in CL. I'm assuming that one of these tables is too low =
such that with the denser air it's too lean.   Thanks, Ski
  __________________________________________________
  Do You Yahoo!?
  Tired of spam? Yahoo! Mail has the best spam protection around=20
  http://mail.yahoo.com=20



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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>All Right, I guess cheap bums like me =
need to bite=20
the bullet and get a WB o2 monitor. This is another case were switching =
o2=20
monitoring &nbsp;just doesn't cut it, am I right?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>--Karl</FONT></DIV>
<BLOCKQUOTE=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=3DRFEHN at amfam.com href=3D"mailto:RFEHN at amfam.com">Fehn, Ron =
G</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">A list for Do-It-Yourself EFI</A> =
</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, February 21, 2005 =
7:51=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: [Diy_efi] 1227747 =
AE=20
  question</DIV>
  <DIV><BR></DIV>
  <DIV><SPAN class=3D942194715-21022005><FONT face=3DArial =
color=3D#0000ff size=3D2>i=20
  would suggest that TPS AE is immediate and possibly less duration as =
far as=20
  time on.&nbsp; MAP AE is possibly longer in duration and dependent in =
the MAP=20
  sensor "seeing" the need.&nbsp; i assumed for one season i had =
inadequate AE=20
  or PS as i was bogging.&nbsp; i thought my mods allowed me to flow air =
easier=20
  than fuel so i upped AE.&nbsp; I went too far.&nbsp; i discovered with =
a WB=20
  installed.&nbsp; i was off the scale at 8.0/1.&nbsp; i removed =
considerable=20
  from AE tables and it is so much better.&nbsp; need to fine tune AE =
this=20
  spring.&nbsp; AE is difficult to tune IMO as it will not show in=20
  scanning.</FONT></SPAN></DIV>
  <DIV></DIV>
  <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
  face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B>=20
  diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] <B>On =
Behalf=20
  Of </B>Bret Levandowski<BR><B>Sent:</B> Friday, February 18, 2005 7:47 =

  PM<BR><B>To:</B> diy_efi at diy-efi.org<BR><B>Subject:</B> [Diy_efi] =
1227747 AE=20
  question<BR><BR></FONT></DIV>
  <DIV>Ok, I figured out my PE bog. Turns out the guy who had =
practically every=20
  table set wrong had the spark table way wrong. Anywhere from 3 - 15 =
degrees.=20
  As far as AE, there is AE Vs MAP and AE Vs TPS, I understand that this =
is a=20
  calculated 'pump shot' based on TPS or MAP input. What I don't get is =
why you=20
  need both. Is one for 'off the line' and the other for sudden stabs =
while=20
  cruising? Do the tables add together? Hope someone can give a good =
detailed=20
  answer. The reason I ask is that I have a nasty hesitation off the =
line, but=20
  only when the outside temp is below 60 deg F and I'm in CL. I'm =
assuming that=20
  one of these tables is too low such that with the denser air it's too=20
  lean.&nbsp;&nbsp; Thanks, Ski</DIV>
  <P>__________________________________________________<BR>Do You=20
  Yahoo!?<BR>Tired of spam? Yahoo! Mail has the best spam protection =
around=20
  <BR>http://mail.yahoo.com </P>
  <P>
  <HR>

  <P></P>_______________________________________________<BR>diy_efi =
mailing=20
  =
list<BR>diy_efi at diy-efi.org<BR>http://lists.diy-efi.org/mailman/listinfo/=
diy_efi<BR></BLOCKQUOTE></BODY></HTML>

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