I'm not sure about the knock sensor being there, but the
timing in MAP systems is based on a table that plots
RPM & MAP.. The principle is the same for MAP systems
from Mopar & GM. I believe CC makes more extensive use
of block learn cells to tickle the mixture & timing. Just a guess though.
Write me off list if you want examples of typical fuel or spark tables
Cheers,
Mike V
>
> I hear ya - isn't that kinda wild to have 36-40 degrees advance almost all
> the
> time? My scan tool reports the same thing - anytime the rpm's or mph are
> much
> more than idling and low speed - it jumps way up there. I guess thats how
> they
> get the magnum motors to get better fuel economy (vs LA blocks). It just
> don't
> seem right considering they usually weigh over 4500 lbs. Have you found
out
> what the major contributing factor is to the spark advance? It looks to be
> related to TPS, MAP, and/or VS as far as I can tell. I understand that the
> magnum motors don't have a knock sensor and supposedly they sense knock
via
> the
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