What parts is the DPR dependant on?

[dswalterwi at earthlink.net (Don Walter)]

Julie,
Are you using a "Test Harness"?  if not you may be getting false readings.  I got mine from TT for about $15.00.  I leave it in all the time jumpered (so the car will run) so I can do quick checks.  If disconnected the car will run rough (limp mode I think) until a amp meter is placed across the test leads.

HTH

-------Original Message-------
From: Michael Abatzis <abatzis2@hotmail.com>
Sent: 08/18/03 09:05 PM
To: scirocco-l@scirocco.org
Subject: RE: What parts is the DPR dependant on?

> 
> yes, check your wiring. i was frustrated as hell by this same problem.
figured out that one of the spade connectors in the o2 sensor plug had
been pushed back and wasn't connecting. apparently the white wires need
a connection as well as the black in order for a signal to be sent out,
even when the car is warm. hth,

-mike


> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org 
> [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of Julie Macfarlane
> Sent: Monday, August 18, 2003 10:11 AM
> To: bencoates@yahoo.com; scirocco-l@scirocco.org
> Subject: Re: What parts is the DPR dependant on?
> 
> 
> I turn the screw, but the DPR current never changes.
> I changed the O2 sensor at Cincy, but that didn't help.
> I changed the brain at Cincy as well and that didn't help. 
> Should I start looking at wiring?
> 
> 
> 
> Julie Macfarlane
> Menlo Park Research & Development
> Internet Application Developer
> www.menloparkrandd.com
> www.montgomeryweb.org
> Amsterdam NY
> 
> 
> 
> 
> 
> >From: Matt Coates <bencoates@yahoo.com>
> >To: Julie Macfarlane <juliemac57@hotmail.com>, 
> scirocco-l@scirocco.org
> >Subject: Re: What parts is the DPR dependant on? Date: Mon, 
> 18 Aug 2003
> >08:05:38 -0700 (PDT)
> >
> >The DPR gets the current from the computer,  and the computer 
> >determines
> >the
> >current based on the voltage it sees from the O2 sensor.
> >
> >10ma that flucuates up or down slightly at idle is normal.  Bentley
> >recommends
> >this as the proper setting, but it is lean.  To richen it up 
> you should 
> >only
> >need to turn the adjustment screw clockwise a little, until 
> you see ~5ma.
> >
> >more info:
> >http://www.scirocco16v.com/tech/fuel_mixture.htm
> >http://www.iders.com/alexweb/vwtuning1.html
> >
> >hth,
> >Matt
> >--- Julie Macfarlane <juliemac57@hotmail.com> wrote:
> > > With the DPR @ 10ma, I want to get it set correctly. What 
> parts are 
> > > conrolling it? I know of the pot on the back of the fuel 
> dist, but 
> > > what else?
> > >
> > > getting frustrated.....
> > >
> > >
> > >
> > > Julie Macfarlane
> > > Menlo Park Research & Development
> > > Internet Application Developer
> > > www.menloparkrandd.com
> > > www.montgomeryweb.org
> > > Amsterdam NY
> > >
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