Here's my theory FWIW;  the thinking behind the activation of the full
throttle switch means you have "floor-boarded it" i.e. you need all she's
got plus some. Looking at the O2 sensor monitor gadget (
http://neksiwel.20m.com/photo5.html ) on my dash the FI system has stopped
toggling the mixture rich-lean-rich-lean and is now pegged in the rich area.
How much richer I do not know.

Ken

----- Original Message -----
From: "David Beierl" <dbeierl@ATTGLOBAL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, August 04, 2004 4:00 PM
Subject: Re: [VANAGON] ECU and Throttle Question

> Which brings up my own little question:  What is it about the last .010 of
> throttle plate movement that requires enrichment, that the previous .010
> did not?  Under what conditions is the enrichment actually needed and when
> is it wasted? And roughly speaking how much is added?