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Thread: boost sensor

  1. #1
    Regular Member chris1804's Avatar
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    Default boost sensor

    changed air filter today and gave boost sensor a good clean, my question is whats the boost sensor ment to look like because in the middle of mine it had a metal wire sort of thing with somat black on the end pic anit to good was on phone at the time


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    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    All of it should be of a beige colour after you clean it.

  3. #3
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    The picture isn't great as you say, but it looks the same as the one I cleaned up last year.

    The beige part probably won't go back to beige without a good scrub which would obviously ruin the sensor. The question is if the clean-up is enough to remove enough of the dirt to allow the sensor to work as it was designed.

    I would assume it's working OK if you don't get any error lights or limp home mode, especially when accelerating.

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    Regular Member chris1804's Avatar
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    cleaned it for about 20 mins i think ill have to get a new one, also the sensor had some oil on is that normal?

  5. #5
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    Oil is normal

  6. #6
    Regular Member chris1804's Avatar
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    ill try the EGR valve ill give that a clean saturday, in the how 2 it says you have to block off 2 the pipes off because of coolant is that right?

  7. #7
    Regular Member chris1804's Avatar
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    any body know price of boost sensor for dti

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    I guess we are talking about a DTi here...

    If you want to remove the EGR from the car, then yes you will need to disconnect the 2 coolant pipes and clamp them to prevent coolant loss. The alternate is to use some EGR3 or similar - this doesn't clean quite as well as taking the EGR out and manually cleaning it, but it means that you don't have to take the EGR out. I used it because I couldn't get the EGR out and didn't want to risk causing anything expensive, and I was impressed with the results.

    If you took the top section of the inlet manifold off to better get at the boost sensor bolt, then you can actually see the part of the EGR valve that's inside the bottom section of the inlet manifold (i.e. the plunger the moves backward and forward to allow/block the exhaust gases). If you didn't take the top section off, it's quite easy - just the 4 Torx bolts that are in a square above where the EGR valve.

    Remember that the inlet manifold is alloy so the torque settings for the bolts are pretty low to avoid stripping the threads - 8 Nm for the boost pressure sensor bolt and the 4 bolts that hold the top and bottom sections of the inlet manifold together.

    The cheapest place I found for a new genuine boost sensor was a dealer - a few pounds under £50. It cost a bit more than that at Andrew Page.

  9. #9
    Regular Member macdad's Avatar
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    Quote Originally Posted by chris1804 View Post
    ill try the EGR valve ill give that a clean saturday, in the how 2 it says you have to block off 2 the pipes off because of coolant is that right?
    Mate i did the "how to ""for this,and it's a very easy job to do.

    Just remove the pipes,undo clips with pliers and pull off the pipes,you will loose some coolant but nothing dramatic,i just used 2 bolts i had lying around,you could use a couple of small pieces of rag and poke them into ends of the pipes,and that will be ok.

    Well worth doing properly if your going to do the job.in which case it needs to be removed completely,a much better clean this way.

    Take your time its not that difficult,be carefull though when removing the electrical plug.

    If you need further help, PM me.

    Mick.

  10. #10
    Regular Member chris1804's Avatar
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    whats the best stuff to clean EGR VALVE? carb cleaner? or is there some better stuff

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