Test Harness for Air/Fuel Ratio read while driving.

[ggehrke at gmail.com (GGehrke)]

Also worth noting here - on our very own .org is this:
http://www.scirocco.org/tech/misc/afgauge/af.html

I got most of the electronic bits for this but haven't had a chance
yet to actually solder it up and install it.  It's a pretty nifty
little project and from what I can tell, if you tweak it a bit to
adjust the range it works in you can get it to be pretty accurate and
useful.  Then you can not only diagnose problems now, but keep an eye
on it to watch for further problems and it would just look spiffy.

-Grant-


On 1/16/06, Don Walter <dswalterwi@gmail.com> wrote:
> That's what I'm thinking but what I don't know is if it will give any more
> or usable data while driving rather than just sitting in the driveway.
>
> On 1/16/06, Nate Mellom <doubt@inwave.com> wrote:
> >
> > Don,
> > I don't see why you couldn't hook up the DPR test harness and get longer
> > test leads, and run it through to your interior.  Get a small digital
> > multimeter and Velcro it to your dash. Or something like that!
> > Nate
> >
> >
> > Don Walter wrote:
> > > I know about those devices.  They measure voltage.  The output of the
> > test
> > > harness is in mA.  I was just wondering if anyone had ever thought of
> > trying
> > > this.
> > >
> > > On 1/16/06, Rick Kellner <rfkellner@snet.net> wrote:
> > >
> > >>Don, do a search on 'Stoichiometric' gauge or meter and you will come up
> > >>with a few gauges for monitoring a/f.
> > >>Here is one:
> > >>
> > >>http://www.gadgetseller.com/gauges/techinfo.htm
> > >>
> > >>Rick.
> > >>
> > >>-----Original Message-----
> > >>From: scirocco-l-bounces+rfkellner=snet.net@scirocco.org
> > >>[mailto:scirocco-l-bounces+rfkellner=snet.net@scirocco.org] On Behalf Of
> > >>Don Walter
> > >>Sent: Monday, January 16, 2006 12:55 PM
> > >>To: Scirocco List
> > >>Subject: Test Harness for Air/Fuel Ratio read while driving.
> > >>
> > >>I had a thought the other day when my son and I were trying to figure
> > >>out
> > >>why after his car starts to warm up it is losing power (sometimes).  We
> > >>were
> > >>going to install the test harness again to check the A/F mA to see if
> > >>that
> > >>was still okay.  Then, I began to think maybe we could extend the wires
> > >>to
> > >>inside the car so that we could monitor it while he was driving then it
> > >>could be checked while under load or other conditions.  Has any one ever
> > >>tried this?  Would it give any different results than just increasing
> > >>the
> > >>RPM's sitting in the driveway.
> > >>
> > >>--
> > >>Don Walter - Waukesha, WI
> > >>1984 8V Audi 4000s (lastest addition)
> > >>1986 2.0L 16V TEC 2 Black Scirocco (see progress at
> > >>http://www.cardomain.com/memberpage/708939)
> > >>1986 2L 16V Toronado Red Scirocco (Ben's Car)
> > >>1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
> > >>1984 1.8 8V Pewter Scirocco (sold years ago)
> > >>1971 Karman Ghia (sold)
> > >>1969 Karman Ghia (sold)
> > >>1969 Beetle (sold)
> > >>_______________________________________________
> > >>Scirocco-l mailing list
> > >>Scirocco-l@scirocco.org
> > >>http://neubayern.net/mailman/listinfo/scirocco-l
> > >>
> > >>
> > >>
> > >>_______________________________________________
> > >>Scirocco-l mailing list
> > >>Scirocco-l@scirocco.org
> > >>http://neubayern.net/mailman/listinfo/scirocco-l
> > >>
> > >
> > >
> > >
> > >
> > > --
> > > Don Walter - Waukesha, WI
> > > 1984 8V Audi 4000s (lastest addition)
> > > 1986 2.0L 16V TEC 2 Black Scirocco (see progress at
> > > http://www.cardomain.com/memberpage/708939)
> > > 1986 2L 16V Toronado Red Scirocco (Ben's Car)
> > > 1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
> > > 1984 1.8 8V Pewter Scirocco (sold years ago)
> > > 1971 Karman Ghia (sold)
> > > 1969 Karman Ghia (sold)
> > > 1969 Beetle (sold)
> > > _______________________________________________
> > > Scirocco-l mailing list
> > > Scirocco-l@scirocco.org
> > > http://neubayern.net/mailman/listinfo/scirocco-l
> > >
> > >
> >
>
>
>
> --
> Don Walter - Waukesha, WI
> 1984 8V Audi 4000s (lastest addition)
> 1986 2.0L 16V TEC 2 Black Scirocco (see progress at
> http://www.cardomain.com/memberpage/708939)
> 1986 2L 16V Toronado Red Scirocco (Ben's Car)
> 1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
> 1984 1.8 8V Pewter Scirocco (sold years ago)
> 1971 Karman Ghia (sold)
> 1969 Karman Ghia (sold)
> 1969 Beetle (sold)
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>