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Thread: O2 Sensor

  1. #1
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    Default O2 Sensor

    Hi
    Got a fault code p0037 turns out to be the rear O2 sensor could anyone tell me what it does ?? its £151 just to buy a new 1 from my local dealer and don't really want to spend that money as the car seems to run fine odd misfire on tick over every now again but i'm putting down to plugs

    Thanks

    Andy

  2. #2
    Full Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    Take it out and clean it, could well sort it.. Some leave it in a cup of vinegar overnight and swear but it...

    You can buy them cheaper than 151, i paid about 35 quid for mine,,
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



  3. #3
    Regular Member lutonmatt's Avatar
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    it makes sure the cat is working as the front sensor reads on reading and the back reads another then the ecu works out what the cat is doing and changes the fuel mix ect

    but you cant clean them out just replace it but one thing i would do is take it to a mot bay and check teh emmisions as my mk4 astra has that code and the light only comes on if i drive it for a long time and i know the cat is no good

  4. #4
    Regular Member jimbo1987's Avatar
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  5. #5
    Regular Member jimbo1987's Avatar
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    Quote Originally Posted by lutonmatt View Post
    it makes sure the cat is working as the front sensor reads on reading and the back reads another then the ecu works out what the cat is doing and changes the fuel mix ect

    but you cant clean them out just replace it but one thing i would do is take it to a mot bay and check teh emmisions as my mk4 astra has that code and the light only comes on if i drive it for a long time and i know the cat is no good
    my cats nackered too light comes on bout every 200 miles but i get p0420 code

  6. #6
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    Quote Originally Posted by jimbo1987 View Post
    sounds so easy (not) lol

  7. #7
    Regular Member jimbo1987's Avatar
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    cheaper

  8. #8
    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

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    You can get the sensors for half the stealers price by shopping around

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