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<DIV>Could someone please give me a little insight and help?</DIV>
<DIV><FONT size=3><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT size=3> 1. <SPAN style="mso-bidi-font-size: 11.0pt">What is the
running equation in the ECU which is generating the fuel delivery calc?<SPAN
style="mso-spacerun: yes"> </SPAN>There should be a long one with inputs
for the MAF, MAP, Inlet temp, etc..<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN>
<P class=MsoNormal style="mso-layout-grid-align: none"><SPAN
style="mso-bidi-font-size: 11.0pt"><SPAN style="mso-spacerun: yes"> 2.
</SPAN></SPAN><SPAN style="mso-bidi-font-size: 11.0pt">Why is the MAF unit
saturating at 255 g/sec?<SPAN style="mso-spacerun: yes"> </SPAN>This is
only 450 cfm.<SPAN style="mso-spacerun: yes"> </SPAN>The MAF must be good
for more than that (probably somewhere around 700-750 cfm).<SPAN
style="mso-spacerun: yes"> </SPAN>(conversion is g/sec * .13228 = lb/min,
then divide by dry air density .075 lb/cubic ft = cfm)<o:p></o:p></SPAN></P>
<P class=MsoNormal style="mso-layout-grid-align: none"><SPAN
style="mso-bidi-font-size: 11.0pt"> 3. </SPAN><SPAN
style="mso-bidi-font-size: 11.0pt">How does the voltage to frequency conversion
take place for the MAF i.e. 5v to 0v dc output from MAF = frequency as viewed
from the ECU.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="mso-layout-grid-align: none"><SPAN
style="mso-bidi-font-size: 11.0pt"> 4. </SPAN><SPAN
style="mso-bidi-font-size: 11.0pt">Where does engine load (Kpa) come from.<SPAN
style="mso-spacerun: yes"> </SPAN>It must be a calc'd value based on MAP
and other inputs.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="mso-bidi-font-size: 11.0pt"> 5.
</SPAN><SPAN style="mso-bidi-font-size: 11.0pt">How does this whole VE and data
collection business work? </SPAN><SPAN
style="mso-bidi-font-size: 11.0pt">I seem to be missing the link between
scanning all this data, entering it into a spreadsheet, arranging it in the
sheet, plotting it for a visual and finally refeeding it into the ECU.<SPAN
style="mso-spacerun: yes"> </SPAN>I am lost as to where the changes takes
place.<SPAN style="mso-spacerun: yes"> </SPAN>Say you collect and graph 2
hours worth of data, big deal, somewhere there has to be a change implemented or
all your doing is plotting data.<SPAN style="mso-spacerun: yes"> </SPAN>If
all the sensors are in bounds and your running closed loop so you can collect
all the data, then what and how are you supposed to change anything before
refeeding the ECU?<SPAN style="mso-spacerun: yes"> </SPAN>Moreover, if
everything was fine so that all the sensors were working, what do you need to
change anyway?</SPAN></P>
<P class=MsoNormal><SPAN style="mso-bidi-font-size: 11.0pt"></SPAN><SPAN
style="mso-bidi-font-size: 11.0pt">Thanks In Advance,<o:p></o:p></SPAN></P><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"><BR>Brian
Estep</SPAN></DIV></FONT>
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