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A/F Gauge Question

Discussion in 'ECU's, Electronics, and Tuning' started by 2phatt, Mar 24, 2004.

  1. 2phatt

    2phatt Member

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    I have a PR3 Ecu and a Field SFC vtec Controller.
    I just got an Autometer Air/Fuel gauge.
    I want to be able to see the results of the changes I make on the Field with
    the Autometer Gauge.
    I have a 4 into 1 header and I have added O2 bungs to runners 2 and 4
    up by the head to simulate the stock setup.
    Heres where I need some advice.
    The gauge needs to look at an O2 signal but I have two O2 signals.

    I have 2 ideas:

    1. Two A/F Gauges, one for each O2
    2. Add a O2 at the collector and send that signal to a single gauge.

    I think adding a 3rd O2 at the collector is probably the way to go but I would sure
    appreciate some input.
    Anyone been there done that?

    Ralph
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    you'd only want to use the primary o2 line. so how ever you wired that up, conenct it to that one.

    BUT- what you are doing is pretty worthless.
    the stock o2 sensor is a narrow band sensor.

    read this topic: http://www.hondaswap.com/forums/index.php?showtopic=34391
     
  3. 2phatt

    2phatt Member

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    And just what part of it is worthless.
    The part where I want to use an A/F gauge to look at the A/F mixture?

    Or maybe the part where I am using 2 single wire O2s on a PR3
    I refer you to:
    http://www.hondata.com/techo2problem.html
    My PR3 is looking for that narrow signal.
    The ECU is using that signal as a stopping point when it
    dithers between rich and lean.
    How would a wideband help a OBD0 PR3 ecu?

    Or is it the Field controller you find worthless.

    I'm thinking your answer was worthless.
    Looking at the primary o2 only tells me about 1 bank of cylinders.
    Maybe part of your answer wasn't worthless.
    Maybe a wideband o2 at the collector to look at the overall gases.
    Anyone with an answer that doesn't have 5' of smart ass with it.

    Ralph
     
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