A little brain picking , help wanted with o2 sensors not Blade, ZX10r

Discussion in 'General 1000RR Discussion' started by sulaco, Dec 29, 2018.

  1. sulaco

    sulaco Active Member

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    Sorry I know it's not a Blade, but I'm guessing these things are pretty much the same, and when I had my Blade this forum was so helpful.
    I have recently purchased a 2007 ZX10r with 13000 on the clock but I'm having an issue with one of the o2 sensors(they have 2 for some reason) I am getting a fault code: 33 Oxygen sensor #1 inactivation, wiring open or short (Equipped Models). I have inspected the harness plugs, they were a bit mucky, but have cleaned them.I have not inspected the sensors themselves but they do give me the correct ohm value(plug heaters) when tested. The curious thing is that when the bike is cold the code comes up, when the bike is warm 70 degrees> and you switch the ignition off and restart the bike it does not throw up the error code. So I'm maybe thinking the o2 sensor heater is not getting hot enough, quickly enough, hence the error. I was thinking of just removing the o2 sensors blanking them off and fitting o2 eliminator plugs. I have read conflicting info saying you can't just eliminate the o2 loop and expect the bike to run right, others say it's not a problem as it's just to do with emissions. Some say if I eliminate the o2 loop I will need a Power Commander or something like it.
    Can anybody shed some light on this, please
     
  2. Boothman

    Boothman Elite Member

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    First thing, are the two sensors identical? If so can you plug the harness in 1 to 2 and 2 to 1 - if you get the same error code its the wiring, if the error swaps to saying sensor #2 inactivation (which is actually sensor 1) then its a bad sensor.
     
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  3. sulaco

    sulaco Active Member

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    Cheers was looking at that option, I think there should be enough wiggle room to swap them, I'll give it a go. Thanks again
     
  4. bonjo

    bonjo Active Member

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    suprised to see 2 sensors and heater circuit on bikes. From experience of faulty sensonrs on my car, when the heater goes then the fault should stay permanent.

    in a 2 sensor scenario you normaly have one post and one pre CAT, one A/F and one O2 sensor. Would be interesting to hear what your zr set up is like
     
  5. sulaco

    sulaco Active Member

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    Both are pre cat !!! they are positioned just where the exhaust goes 4 into 2 at the start of the cat. According to the parts listing they are both o2 sensors.
     
  6. Boothman

    Boothman Elite Member

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    Let us know how you get on
     
  7. sulaco

    sulaco Active Member

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    The plot thickens, swapped plugs as suggested and no Fi light at all. Were they possibly plugged in wrong to begin with? I did release some cable from behind the coolant bottle and both plugs reached both loom sockets easily and both snap on to the bracket to secure them. I didn't really take much notice of the wire colour coding maybe they are socket specific. But all seems good for now. Fingers crossed
     
  8. Boothman

    Boothman Elite Member

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    How strange - maybe, but if the sensors are identical ......... hmmm I don’t know. Could have just been dirt in the connector? If you wanted you could swap back and see if the fault reappears
     
  9. sulaco

    sulaco Active Member

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    Spoke too soon, Fi light back on, removed the sensor ordered a new one, luckily found one on e-bay for £85 quid or best offer,so offered a cheeky £65 and it was accepted. Happy days, £172 from Kawasaki!!!! Got a few other jobs to do while I wait for the part, fitting a Gipro gear indicator with tre built in, rad guard and need to fix up a number plate light, how it passed mot without it I don't know, should keep me busy for a while, plus while all the bodywork is off it's going to be cleaned to within an inch of it's life, previous owner must have been scared of soap:D. Cheers for the input
     
  10. Boothman

    Boothman Elite Member

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    Hopefully that’ll sort it for you
     
  11. bonjo

    bonjo Active Member

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    I have two o2 sensors on my 4cyl car engine banks 1&2. looks like your is similar.
    My RR8 exhaust goes 4>2>1 and the single sensore is in the end.
    Logically more sensores would give better monitoring of the fuel mixture.
    Normally it is the heater circuit that goes.
    Let us know if the issue is resolved:)
     
  12. sulaco

    sulaco Active Member

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    New sensor fitted, all good now. Cheers
     
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