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Koso mini3 afr gauge

This is a discussion on Koso mini3 afr gauge within the Grom Talk forums, part of the Honda Grom Forums category; Good to know. Now I wonder the wideband model could it be hooked up with a PCV/WB2. If so, it would fit my needs. Probably ...

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Thread: Koso mini3 afr gauge

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    D. Flynn's Avatar
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    Good to know. Now I wonder the wideband model could it be hooked up with a PCV/WB2. If so, it would fit my needs. Probably overkill with the few modifications I have, as I will stay at stock bore. Just after the piece of mind you get from what the AFR is while you are WOT on the back highways.
    Dyron

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    Where exactly does it plug into?


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    [QUOTE=whbwrestling;134239]Where exactly does it plug into?

    It plugs in between the o2 sensor and the harness

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    Where can i find that on the bike do i need to take the plastics off?


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    The connector is on the bottom right of the motor. It's the one with the brass nut.

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    Also need to take off the headlight to access the power and ground locations. That's all there is.

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    is buying a lot of plastic parts!
     

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    Just installed one, but I think I messed it up. Damn thing always reads "15.7", with very little variation. I even started adjusting the EJK up and down which noticeably and adversely affected the idle speed, but yet the reading never changed much.

    I think since the EJK taps into the O2 sensor, and so does this gauge, I may have the multitude of taps arranged poorly. Dammit. Got too dark outside to screw with it. I'll have to look at it again in the morning.

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    Mine is nothing but variation, even at idle it jumps from too rich to 16.9 to 12.4 to 14.7 on and on. I'm going to install the innovate and run them side by side to see what's up. Either the imap sucks or the koso sucks.

  10. #19
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    Now that it's daylight, I went and checked the wiring again. Appears to function, but I'm not convinced it's working right. Mixture shows 17.0 at idle. So I added so much fuel through the EJK that the engine started to stumble. Meter still showed 16.9. Gonna ride with it today and see what it says. Bought it through Amazon, so it may be going back.

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    My Koso 3 mini AFR gauge at closed loop would hover at 14.7. At open loop and full throttle it's locked at 13.1. Stage 1 mods btw.

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