<VV> O2 sensors

[Daniel Monasterio]

Hi Frank,

   Finally, I learnt the lesson. Didn't know how big differences are between narrow and wide band O2 sensors. Been using a narrow band one on my Rampside (last 2 years) just like an aid on tuning, using a voltmeter to read the output milivolts. Every tuning I tried to get it on the 650-750 mV range before taking the Rampy for emissions testing. I use, too, a carb balancing tool, vacuum gauge, timing light, infrared thermometer and my ears. On wide bands, the reading is on current (mA) instead or mV and think they must work in conjunction with the readout instrument.

   Installed the 15729s on the exhausts, using modified and welded 18 mm nuts. Hope these will work as the one on the Rampy. Don´t have a readout instrument for wide bands but, maybe later ($$) shall get a whole kit (as Seth suggested). 

   Not read for testing yet, as I´m still working on temp. senders (oils and heads). 

 

   Thanks a lot

 

Daniel Monasterio (still not too old for learning)


 


Date: Thu, 16 Apr 2009 16:56:52 -0400
From: frankcb at aol.com
Subject: Re: <VV> O2 sensors
To: dmonasterio at hotmail.com; sethracer at aol.com; virtualvairs at corvair.org


Daniel,
     Doing a quick Google search shows that the Bosch 15729 is a "universal" type sensor which is listed as fitting hundreds of Ford, Chrysler, even Hyundai (and other) model cars all the way back to the early 1990s.  Even my girlfriend's 1992 Ford Taurus wagon uses this sensor.  So it is NOT a "wide band" type.  Most, if not all, of the 4 wire sensors are NARROW band as used in most of the modern cars.  The widebands I have seen are 5 wire types.  You should use the exact type as specified by the maker of your readout instrument, like Innovate and others.  The readouts units are designed to work with specific sensors so that's what should be used with them.
     Good luck!
     Frank Burkhard
 
In a message dated 04/15/09 19:55:42 Eastern Daylight Time, dmonasterio at hotmail.com writes:

Hi Frank,
   Just returning from my FLAPS with a pair of Bosch 15729, 4 wire, sensors. They said it is wide band but, don't know how to check this as I couldn't get that info on the net. 
   I plan to install them vertically (downwards) but, just after checking it is the right one.
 





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