[Diy_efi] Interesting AFR sensing idea

[Perry Harrington]

I was looking through some scope traces and explanations here:
http://www.cnnw.net/~fourty/trendingdis.htm

And something occurred to me.

Would it be possible to detect precise AFR readings based on the firing voltage
of a cylinder's spark?

If the voltage is higher the cylinder is lean, lower and it's rich.

The real issue is determining the relationship between AFR and voltage.  Since
engine's vary and their spark systems do too.

--Perry

-- 
Perry Harrington			Data Acquisition & Instrumentation, Inc	
perry at dainst dot com					 http://www.dainst.com/

Those who would give up essential liberty to purchase a little temporary safety
deserve neither liberty or safety. Nor, are they likely to end up with either.
                             -- Benjamin Franklin

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