Lamda Sensor Problem

Discussion in 'Mods, Upgrades, Accessories and Products' started by Escargot, Jun 25, 2013.

  1. Escargot

    Escargot New Member

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    I've just fitted a new Leo Vince Factory R to replace the can the previous owner had put on my 2008 RR8. Trouble is, in swapping the lamda sensor over to the new pipe, I think I may have twisted one of the wires loose or off. On a quick test ride, the throttle behaved a bit oddly and the orange PGM-FI light flickered on and off irregularly.

    Is this something I can fix? Or is it essentially a plug in to a Honda computer with costs to match?

    The new silencer came with 2 screw-in plugs, one with a tapped hole to take the lamda and one solid, presumably to blank the hole. I'm wondering if maybe I can take it out altogether or is that not an option?
     
    #1 Escargot, Jun 25, 2013
  2. JM1

    JM1 Active Member

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    You can remove it altogether, but then the O2 sensor won't work, with the resultant effect on fuelling and warning light.
    If you were fitting a fuel controller (eg, Power Commander), you could fit an O2 sensor eliminator and let the fuel controller control the whole fuel map.
    Some people (not me) have fitted an O2 sensor eliminator without fuel controller, just to get rid of the waring light.
     
    #2 JM1, Jun 25, 2013
  3. F1reblade

    F1reblade Active Member

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    I take it your not using a Power Commander then as you normally get a set of o2 eliminators with them. Essentially they're a 20p resister in a bit of plastic that stops your fi light coming on. Some people on the VFR forum use them even if they don't have a PC as they say it smooths the ride out.
     
    #3 F1reblade, Jun 25, 2013
    Last edited: Jun 25, 2013
  4. phantom

    phantom Active Member

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    As said o2 eliminator or a new sensor. Probably a good
    Note for others going to swap exhausts is to unplug
    The lambda sensor rather than twisting the wires and
    Risk breaking them like you have.
     
    #4 phantom, Jun 25, 2013
  5. JM1

    JM1 Active Member

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    AFAIK the eliminator lets the PC control the full fuelling range, its not there just to cancel the warning light.
     
    #5 JM1, Jun 25, 2013
  6. phantom

    phantom Active Member

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    ↑ this is true.
     
    #6 phantom, Jun 25, 2013
  7. Escargot

    Escargot New Member

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    I'm sort of wondering whether now may be the time to go straight to a Power Commander V rather than faff about trying to fix this and maybe hit other problems. From what I'm reading, the PC-V is easy to fit and all the other problems of surging, uneven idling disappear and in comes better power, better fuelling and better MPG.
    Is this right?
     
    #7 Escargot, Jun 28, 2013
  8. phantom

    phantom Active Member

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    no, it helps a lot but there is still surging...but
    I done an ecu reset with the PCV and the surging
    is near all but gone.cant say if its a combination of the
    two but it has helped.I would say get a PCV as the difference
    in power is night and day.
     
    #8 phantom, Jun 28, 2013

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