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Thread: Need part number and price for an O2 sensor.

  1. #1
    TunixComplex is offline Cadillac Owners Enthusiast
    Automobile(s): 2003 CTS 3.2 5M
    Join Date
    Jan 2010
    Location
    Springfeild, MO
    Age
    27
    Posts
    614

    Need part number and price for an O2 sensor.

    The sensor is (Bank 1 Sensor 2) which is the downstream sensor im pretty sure.

    Any idea on the part number or a price?

    VIN: 1G6DM57N230111158

    Thanks

    Also... im throwing a lot of U1000 codes could my ECM be dieing? I clear the codes and then the check engine light comes back on minutes later with the same P0138 (O2 sens.) and U1000. Im going to check all fuses tonight as Ghetto said the U1000 could be a blown fuse as he had the same issue with a blown alarm fuse.


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  3. #2
    Join Date
    Sep 2007
    Location
    Wilmington, NC
    Posts
    13,969

    Re: Need part number and price for an O2 sensor.

    both Bank 1 Sensor 2 and Bank 2 Sensor 2 (post-cat. aka downstream) sensors are the same

    GM#24402860
    $121.84 - list price
    $ 76.15 - your price

    i've got one in stock

    ...

    as for the U1000 could be a low powered or dying battery ... or a loose connection ... the ECMs are known to go bad on the early 1st Gen CTS's ... either throwing phantom O2 codes or grabbing the key and not letting go

    fuse could also be a cause since the U code is a communication error code and if they fuse is blown that module will not communicate and you will then get the U code

  4. #3
    TunixComplex is offline Cadillac Owners Enthusiast
    Automobile(s): 2003 CTS 3.2 5M
    Join Date
    Jan 2010
    Location
    Springfeild, MO
    Age
    27
    Posts
    614

    Re: Need part number and price for an O2 sensor.

    Thanks, I looked at the fuses but couldnt find much. Whats the part number for an ECM?

  5. #4
    Join Date
    Sep 2007
    Location
    Wilmington, NC
    Posts
    13,969

    Re: Need part number and price for an O2 sensor.

    2003 CTS (3.2L) ECM
    #12581155
    $460.92 - list price


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