Fuel Enrichment; TT vs Autotech (or coolant vs DPR)

[rfkellner at snet.net (Rick Kellner)]

I could be completely wrong and that is why I am asking for the input
however; I had heard that the TT version 'fools' the cold enrichment
circuit and the ECU made the adjustments to increase the pressure.  The
Autotech version is a direct effect on DPR current.  Again, I could be
completely off base and would welcome the input.
If they both fool the system by adding resistance to the cold enrichment
then that answers my question.
Rick. 

-----Original Message-----
From: David Utley [mailto:fahrvegnugen@cox.net] 
Sent: Saturday, October 23, 2004 12:05 PM
To: Rick Kellner; scirocco-l@scirocco.org
Subject: Re: Fuel Enrichment; TT vs Autotech (or coolant vs DPR)

I thought they both affected the DPR...?

David
> 
> From: "Rick Kellner" <rfkellner@snet.net>
> Date: 2004/10/23 Sat AM 10:01:13 EDT
> To: <scirocco-l@scirocco.org>
> Subject: Fuel Enrichment; TT vs Autotech (or coolant vs DPR)
> 
> Does anyone have an opinion or experience as to the best approach for
> fuel enrichment for the CIS-E?  
> There are two approaches that I know of; first the TT version which
> enriches mixture via coolant temp sensor circuit.  The second version
is
> the Autotech which enriches mixture via DPR current.
> Thanks, Rick.
>  
>  
>  
>  
>  
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