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Thread: Pb-sensor replacement

  1. #21
    Member mikebamy's Avatar
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    Fantastic work . I have been getting by on used sensors with varied results . Will do the swap soon.

  2. #22
    Senior Member turbo_man's Avatar
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    Quote Originally Posted by mikebamy View Post
    Fantastic work . I have been getting by on used sensors with varied results . Will do the swap soon.


    I don't think you'll be disappointed. I still haven't found out what makes the suzuki sensor different than the original sensor I had in there.

    I've measured everything I can think of.

    I'm REALLY curious at this point....
    '82 CX-500 Turbo
    '94 VT-600CD (sold)
    '82 CX-500 Turbo #000541(sold)
    '80 GL-1100 (sold)
    '79 CX-500 Deluxe (sold)

  3. #23
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    You have to see the internals of the sensor for it to make sense.

    You are taking about 30 year old, first generation technology versus modern technology. Newer, better materials, manufacturing processes; when you see it, it makes sense.

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  5. #24
    Senior Member abecedarian's Avatar
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    That's what I was thinking too- modern stuff > older stuff.



    Likely, the Zuk sensor is more linear, likely higher-resolution, and more repeatable during manufacture.
    1982 CX500TC- JH2PC0300CM000120
    You can lead the horticulture but you can't make her think.

  6. #25
    Senior Member turbo_man's Avatar
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    I'd like to think the new sensors are just better overall, but I've done test after test including response time, and I just don't see it.

    The only thing I can think now is that the actual calibration is off, or that vibration has something to do with it.

    I guess it doesn't really matter now that we have a good alternative.

    I'm still going to try to find out, because I'm that way.
    '82 CX-500 Turbo
    '94 VT-600CD (sold)
    '82 CX-500 Turbo #000541(sold)
    '80 GL-1100 (sold)
    '79 CX-500 Deluxe (sold)

  7. #26
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    Again, have you actually opened one up and looked at the guts?

  8. #27
    Senior Member turbo_man's Avatar
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    I didn't want to hack the one I have until I've tested it. I've seen pictures of the guts. Lots of laser-trimmed resistors and an IC. I noticed the innards are exposed to the incoming air; less a conformal coating, probably. Maybe that's what causes them to drift.
    '82 CX-500 Turbo
    '94 VT-600CD (sold)
    '82 CX-500 Turbo #000541(sold)
    '80 GL-1100 (sold)
    '79 CX-500 Deluxe (sold)

  9. #28
    Senior Member dutchturbo's Avatar
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    You can spare your efforts breaking one apart because we already did so ofcourse. We were also very curious after the inside. It's excactly the same build up only smaller. Same piezo-element with 8 connections instead of 5 for the Honda Pb and the resistors are mounted directly at the connectors instead of being carved on a resitance plate.

    I've made some pictures from the inside but I cannot place it on this forum. What is the size for photo's on the forum?



    Love it you are so happy. It is for us also a conformation it is the right one and even better than original. Will try to add some photo's
    83 CX650T 2x

  10. #29
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    CXT Sensor





    Nippon Denso modern sensor




  11. #30
    Senior Member turbo_man's Avatar
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    Nice photos.

    Not what I expected at all in there.... not the same technology Freescale uses, that's certain.

    Much more tightly integrated than the original sensor assembly.

    I'm mainly interested in exactly which parameter it is that makes the seemingly good original sensor work so horribly.

    If there was a repeatable and reliable measurement we can do to prove whether or not the Honda sensors are bad without substituting a different one, I'd just like to know.

    However, now that we actually HAVE something that works to substitute, it's probably moot.

    I'll putter around with it some more when I get the other Suzuki sensor in a day or two.



    Thanks for the photos!
    '82 CX-500 Turbo
    '94 VT-600CD (sold)
    '82 CX-500 Turbo #000541(sold)
    '80 GL-1100 (sold)
    '79 CX-500 Deluxe (sold)

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