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Date: Tue, 07 Dec 2004 05:33:13 -0500
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
From: Joseph M Berki <Joseph.M.Berki@grc.nasa.gov>
Subject: Oxygen sensor
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Thanks to everyone who responded to this post.  I found a circuit that uses 
the O2 sensor to drive a series of LEDs at the site Ed posted.  If the 
system we are using is open loop then this type of circuit is an add on for 
a sanity check?  Has anyone used a closed loop system?  Paul Conner is 
currently using a Microtech ECU and really likes it.  The ability to idle 
well seems to come to mind.  Rusty mentioned that in using the open loop 
system that the quantities of how much fuel to inject are stored in a look 
up table and it is possible to change these values to "tweak" or "tune" the 
system.  How is this done?  Thanks again for any help.

Joe Berki
Limo EZ