<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=text/html;charset=iso-8859-1 http-equiv=Content-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<META content='"MSHTML 4.72.3110.7"' name=GENERATOR>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT color=#000000 size=2>Hi Bruce, in my stuff, LV8 = MAF/RPM * scaling
factor.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT size=2>I think the Max Air Flow is the maximum allowed at a certain
RPM before the ECM considers the MAF to be defective and uses TPS and RPM for
fuel..</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<DIV><FONT face=Arial size=2><B>-----Original Message-----</B><BR><B>From:
</B>Bruce & Lisa Wilcox <<A
href="mailto:wilcoxbl@gte.net">wilcoxbl@gte.net</A>><BR><B>To: </B>GMECM
<<A
href="mailto:gmecm@efi332.eng.ohio-state.edu">gmecm@efi332.eng.ohio-state.edu</A>><BR><B>Date:
</B>Friday, April 30, 1999 6:39 PM<BR><B>Subject: </B>VL8
Calculation<BR><BR></DIV></FONT>
<DIV><FONT color=#000000 size=2>I looked through the archives and found lots
of discussion on the LV8 variable. However, I did not find an equation that
defines how to calculate this parameter from the sensor data and lookup
tables.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>Since LV8 is the engine load variable, I
would think that this parameter is related to the engine VE at a given RPM.
One possible way to calculate LV8 is listed below.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>LV8 ( @ given RPM) = ( MAF (g/s) @ test RPM
) / (Maximum Airflow (g/s) @ test RPM ) X 255</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>For the 87 vintage 1227165 F-Body cars,
there is a "Maximum Air Flow vs. RPM" table. I wonder if this
table is used to calculate the LV8 parameter????</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>If the actual equation is documented, where
can I find it???</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>Thanks,</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2>Bruce
Wilcox</FONT></DIV></BLOCKQUOTE></BODY></HTML>