<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=windows-1252" http-equiv=Content-Type>
<META content="MSHTML 5.00.2722.2800" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>Ok guys, </FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2> I have been floating around here for about
a week now. I joined this list to learn how my ECM in my 89 (MAF) Corvette
works. I have an understanding on all the sensors and their functions and
how the ECM uses this data. What I don't understand is how to change spark
maps and fuel maps to fine tune my modified motor. I plan to build a 383
soon with larger injectors and there is not tuner around the Pittsburgh
area. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Questions are:</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>1. Where can I learn how to change the program in my
prom? </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>2. I want to know how to lean the injectors at idle
when in open loop. (idles rich now)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>4. I want to learn to optimize WOT
AFR. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>5. I want to learn to increase idle speed
due to a larger cam. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>What I don't have is an understanding if hex values, prom
address and what they mean. Is there a book I can buy that explains
all of this? Is there such a thing that I can buy that will let
me change my prom program via a laptop and my ALDL
connector? </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Finally, if I don't have a good understanding of how all
of this works, I don't want to be a burden to the list so maybe I should
quit the list. I can ask alot of questions!!</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Jason</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> </FONT></DIV></BODY></HTML>