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

[fahrvegnugen at cox.net (David Utley)]

I believe they do both fool the ECU to change the fuel pressure via the DPR.  I also think that they are relatively the same product, but I want to say that the TT unit is better made, or something to that effect (I could think that just because it seems that everything they make/sell is superior to their competitors)...

I am sure someone with actuall experience will chime in...  :-)

Cheers,
  David
> 
> From: "Rick Kellner" <rfkellner@snet.net>
> Date: 2004/10/23 Sat PM 12:40:24 EDT
> To: <scirocco-l@scirocco.org>
> Subject: RE: Fuel Enrichment; TT vs Autotech (or coolant vs DPR)
> 
> 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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> > 
> 
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