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Re: WOT switch

To: alex@matrix.com.pl (Aleksander Mierzwa)
Subject: Re: WOT switch
From: Orin Eman <orin@WOLFENET.com>
Date: Tue, 2 Dec 1997 10:33:15 -0800 (PST)
Cc: thyrsted@olsy.dk, phil@isham-research.demon.co.uk, quattro@coimbra.ans.net
In-Reply-To: <0716D052C1CFD0119D280060979FBE9A141B8B@a1.matrix.com.pl> from "Aleksander Mierzwa" at Dec 2, 97 03:58:07 pm
Sender: owner-quattro@coimbra.ans.net


> Because Audi is a long-time leader in the "make your car complicated"
> contest, there are three devices to richen the mixture on the
> turbocharged K-Jetronic injected engines:

Ever seen a mid 80s carbureted US Honda Accord?  About 200 vacuum
hoses running around in there!

> 3) A frequency valve. It is used by the ECU to alter the control
> pressure depending on signals from the oxygen sensor, throttle switch
> etc. I'm not sure if ECU uses it to richen the mixture during warm-up
> period.

It is used to richen the mixture during warmup until the O2 sensor
warms up enough to work.

Orin.

References:
- RE: WOT switch
  - From: Aleksander Mierzwa <alex@matrix.com.pl>

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