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  1. #1
    nsschwenk's Avatar
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    P0546 - Exhaust gas temperature switch shorted to 12V or open circuit

    I first had the error code
    P0544 - Exhaust gas temperature sensor faulty

    Now after installing a new sensor, I get the p-0546 code.

    The code come as soon as you put the key in. (with out starting the engine). How can this be happening? There is only one way to install a clip and the wires are intact.

    Any thoughts?


  2. #2
    nsschwenk's Avatar
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    I also put a lot of lock tight on the threads as well. Does the sensor ground its self when it is screwed into the exhaust? Just a thought.. it may not be touching metal to metal

  3. #3
    Moderator Snoman's Avatar
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    Quote Originally Posted by nsschwenk View Post
    I also put a lot of lock tight on the threads as well. Does the sensor ground its self when it is screwed into the exhaust? Just a thought.. it may not be touching metal to metal
    check your wires, make sure they are not pulled away from the plug..also make sure there is no corrosion on/in the plug.. and no it doesnt ground our to the box being it is made of aluminum..

  4. #4
    JT jpt7779's Avatar
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    Check the wire condition from the sensor clip to the other end where it joins the rest of the harness, if it touched the water box they could have melted, causing the short. Ask me how I know this.........

  5. #5
    Fast & Loud meeper's Avatar
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    Yeah i had a bad connection on the knock sensor on the main engine harness once..

  6. #6
    Autosport's Avatar
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    Also check all the earths on the engine are well grounded

  7. #7
    GPRXP vspec1's Avatar
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    Quote Originally Posted by nsschwenk View Post
    I also put a lot of lock tight on the threads as well. Does the sensor ground its self when it is screwed into the exhaust? Just a thought.. it may not be touching metal to metal
    I usually use a little bit of anti-seize, but never lock tite

  8. #8
    GPRXP vspec1's Avatar
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    Quote Originally Posted by nsschwenk View Post
    I also put a lot of lock tight on the threads as well. Does the sensor ground its self when it is screwed into the exhaust? Just a thought.. it may not be touching metal to metal
    +1 look at the harness all the way down and make sure its not melted or the wires have not pulled out of the connector.

  9. #9
    nsschwenk's Avatar
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    I'll give it a try tonight when I get the ski out of the garage. Thanks for all the advice

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