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Thread: EGT sensor

  1. #1
    Regular Member Super T's Avatar
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    Default EGT sensor

    Is the egt sensor one of the lamda sensors ???

    code no p0546

    Help!!!!!

  2. #2
    Regular Member Gsi3.2's Avatar
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    nope... there's two sensors on top of your catalyst ( or stage 3 elbow) dependant on model year...one it the temp probe....

    if it's a later car i'm not sure they had them fitted...

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    Regular Member Super T's Avatar
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    It's an 04 Mark. Do you think it's an easy fix??

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    Regular Member mark1319's Avatar
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    Temp probe is the one on the bottom of the cat IIRC.

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    Regular Member Gsi3.2's Avatar
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    Quote Originally Posted by Super T View Post
    It's an 04 Mark. Do you think it's an easy fix??
    when you fitted your BSR downpipe did you have two 'senders' up by the turbo and one below the standard cat??

    Quote Originally Posted by mark1319 View Post
    Temp probe is the one on the bottom of the cat IIRC.
    thats the post cat lambda sensor.. it tells the car the final exhaust gas ratios..and gives back signals to determine the A/F ratio...

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    Regular Member Super T's Avatar
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    Do you think the volvo patch lead is at fault? The problem started when the downpipe was fitted.

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    Regular Member Super T's Avatar
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    Sorry Mark had to sit in the waiting room.

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    Regular Member mark1319's Avatar
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    Quote Originally Posted by Gsi3.2 View Post
    thats the post cat lambda sensor.. it tells the car the final exhaust gas ratios..and gives back signals to determine the A/F ratio...
    Ahhh right so it's the one on the top then???

  9. #9
    Regular Member Gsi3.2's Avatar
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    Quote Originally Posted by Super T View Post
    Do you think the volvo patch lead is at fault? The problem started when the downpipe was fitted.
    it 'could' be dodgy connections.. but it will need hooking up to TECH2 or Vauxcom to see what live readings it's giving back... or it could just be a damaged or dodgy sensor...

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    Regular Member Super T's Avatar
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    Thanks i'll try and thrash it out in the morning.

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