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<DIV style="FONT: 10pt arial"> </DIV>
<DIV style="FONT: 10pt arial">Start by reading Programming 101, the the
archives here and at DIY_EFI. Visit <A
href="http://www.tunercat.com">http://www.tunercat.com</A> , then <A
href="mailto:syty@syty.org">syty@syty.org</A>, then the GN list. All
have various amounts of ecm info.. There is even a shareware editor to
look at (not directly applicable to our car thou).</DIV>
<DIV style="FONT: 10pt arial">Once you have a good grasp on those materials,
it will be much clearer.</DIV>
<DIV style="FONT: 10pt arial">Grumpy</DIV>
<DIV style="FONT: 10pt arial"> </DIV>
<DIV style="FONT: 10pt arial"><B></B> </DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Question from newbie</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>Questions are:</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>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>4. I want to learn to optimize WOT
AFR. </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>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>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>Jason</FONT></DIV>
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