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Re: Knock Control code

To: Stefan Bendevis <Audiman1@msn.com>
Subject: Re: Knock Control code
From: Brendan Rudack <rudack@ucsub.Colorado.EDU>
Date: Tue, 27 May 1997 20:45:03 -0600 (MDT)
cc: quattro@coimbra.ans.net
In-Reply-To: <UPMAIL01.199705280155080632@msn.com>
Sender: owner-quattro@coimbra.ans.net

On Wed, 28 May 1997, Stefan Bendevis wrote:

> a 1987 5kcdq.  I read the code and it turned out to be 2141(knock control).  
> Lately I have been using Sunoco Gold (94 Octane) fuel.  Why is this light 

If you didn't notice Sunoco 94 contains 10% Ethanol.  This is a cheap
method of boosting the octane rating of the fuel.  For some reason
fuels containing Ethanol do not act like a high octane fuel should and
it is most likely prematurely detonating.  This problem gets worse when
the boost level is raised.  Graydon put a tank of this stuff in his car
before noticing the Ethanol content and the car ran horribly under
boost...

HTH

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Brendan Rudack

rudack@umcc.umich.edu
rudack@ucsub.colorado.edu
Fenton, Michigan 
USA

'88 90q "my boostless racecar"
coil-overs, G60s, 63mm exhaust, 
modified bumper...

'87 5000tq "my boosted frump mobile"
IA stage 2, ABT/Koni/Tokico's
working on modified bumper...

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Follow-Ups:
- High Octane (Was: Knock Control code)
  - From: Glenn Lawton <lawtonglenn@gsmai.com>
- Re: Knock Control code
  - From: "Graydon D. Stuckey" <graydon@apollo.gmi.edu>

References:
- Knock Control code
  - From: "Stefan Bendevis" <Audiman1@msn.com>

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