Re: Re: Good O2 Sensor Installation/Info Link

From: Doug Fedeli (rdf@eznet.net)
Date: Mon Mar 05 2001 - 10:52:02 EST


Does anyone have a good mounting location for extra gauges in a Gen II with pics?

Doug Fedeli

Shane Moseley wrote:

> Kyle Kozubal wrote:
>
> > Shane,
> > So basically does this mean that A/F Ratio Monitors are fairly useless on
> > our trucks when tapping into the stock 02 Sensor? I did think about this
> > because when scanning my truck, the 02 sensor was going all the volt range,
> > which would explain the display on the Auto Meter A/F Monitor:
> > http://www.autometer.com/hp/techtips/air_fuel_hookup/air_fuel_hookup.html
> > Good to know before I actually did a Summit order tonight.
>
> I guess I'm a little confused why you would think they would not work. They
> work perfectly - just as they are designed to. I was just stating that you will
> not be able to use them to try to tune your truck around say 12.5 (or anything
> other than 14.7) to 1. Only a wide-band sensor can show true values that are in
> the range of 9-17 to 1 ratios.
>
> My gauge has been tapped directly into the O2 sensor signal wire (black) about 6
> inches up the harness from the actual sensor sticking out of the front of the
> cat for over 3 years and has been working fine. As mentioned before - you'll
> never guess about whether you are going lean or rich under boost, WOT, idle or
> whatever condition again. In fact, you will see instead that what I've been
> saying about being under closed loop control over 9516030267125f the time (oscillating
> like shown on the webpage) is part of the PCMs strategy to meet the federal
> emissions regulations.
>
> I recommend an A/F gauge to anyone with a vehicle (incl. boats, motorcycles,
> etc) that even HAS O2 sensors before the modding starts. I first bought mine as
> an insurance policy if you will - then it turns out to be the best tuning aid
> I've found besides my scan tool.
>
> Hope that helps - if not - just keep asking questions...
>
> Latr,
>
> Shane
>
> ps - Sterling Marlin takes 3rd !! Woohoo! Him, Ward, and Bill are standing
> pretty good in the points race...
>
> --
> '96 IndyRam-HisIndy-MPI/TB/Pulleys/AccelCoil/MPComp/HookerSuperComps/CompTAs
> '96 IndyRam-HerIndy-numbered(#142)"Track Truck"
> '74 Triple-Black Dodge Challenger Rallye 360 home-brew EFI R&D vehicle
> '68 Black Corvette Convertible 427 (For Sale)



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