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  1. #1
    Moderator HiPeRcO's Avatar
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    MSX 110 & MSX 150 O2 /Oxygen/Lambda Sensor Alternative is Bosch 15733

    (Some historical discussion can be found here: http://www.greenhulk.net/forums/showthread.php?t=179512, but to keep things clean I started this new thread):

    I am happy to report that the Bosch 15733 (a "universal fit" option) is an acceptable substitute for the Weber MSX O2 / Oxygen/ Lambda Sensor. The heater resistance measured 9.7 ohms on the one I purchased, a good match for the nominal 9 ohms specified for the Factory version.

    I bought mine at Amazon, after coupon that was available it was only $30, about 1/4 the cost of the factory version:
    http://www.amazon.com/Bosch-15733-Ox.../dp/B000BZG8ZU

    The Bosch 15733 can be purchased with their "Smart Link" connector system allowing you to re-use the factory wire harness connector. I made my new harness a little longer, in order to allow the splicing connector to sit in a convenient spot. Building the cable isn't too bad, just pay attention to the assembly order so that you don't have to take it apart again.

    I chased an issue with my MSX150 for a long time, before fixing it with this new sensor. If your MSX is down on power, and you've checked all the usual suspects, its a good idea to replace the O2 sensor (worked for me).

    You can see from the photos below that the Bosch 15733 looks nearly identical to the original one I replaced, minus the black soot

    EDIT: I used the "Powerbuilt 648691 Oxygen Sensor Offset Puller" to remove and install the sensor, again from Amazon:
    http://www.amazon.com/Powerbuilt-648...1P5XQDWWJW3E3B

    Click image for larger version. 

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  2. #2
    ripcuda's Avatar
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    Nice! Thanks for pioneering!

    I need to get one too.

    Cheers!

  3. #3
    hill160881's Avatar
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    Good stuff! Glad it worked out.

  4. #4
    Mike Greenwood's Avatar
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    Awesome work

  5. #5
    Moderator HiPeRcO's Avatar
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    Can we make this a sticky?

  6. #6
    ripcuda's Avatar
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    I'll second the this as a good, replacement option to the OEM O2 sensor.

    I have one of these (Bosch 15733) on my MSX 150 and it works great. No issues.

    Cheers!

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