Re: eprom for 747

[Ludis Langens <ludis@cruzers.com>]

Bruce Plecan wrote:
> 
> On the mask 42 there is no entry for final gear ratio.
> The final gearing limits the way the engine can accept timing and fuel.

There's no seperate final gear ratio entry.  But (in manual transmission
bins), there's a table that gives the transmission gear ratios.  These
table values have the final drive ratio built in.  This lets the ECM
compare engine RPM with the VSS speed (which is calibrated for after the
diff.) to determine which gear the manual transmission is in.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/

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