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<DIV><FONT face=Arial size=2>Hello,</FONT></DIV>
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<DIV><FONT face=Arial size=2>I have a 165 ECM for my TPI F-body
and am modifying Craig Moates scanning software code and I have a
few</FONT><FONT face=Arial size=2> questions on how the ECM
interpretes the voltage from the TPS.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Since the TPS is supplied with 5v, it scales from
0v to 5v. The ECM then interprets that scale as 0 to 256 bits
accordingly, right? I know some tables and constants use throttle position
to determine actions like EGR and entering PE. With my TPS set at .54
volts at idle that translates into 27or 28 bits (i don't know if the
ECM truncates or rounds up) and 10.8% throttle. But I don't think
that is correct because there would never be 0% throttle and also I
know there is an EGR constant on my stock bin set at 6% throttle. That
leaves me asking what does the ECM consider as 0% throttle and 100%
throttle?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>A somewhat related question: How does the ECM
know when to follow the idling commands?</FONT></DIV>
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<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>James</FONT></DIV>
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