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Thread: boost sensor on the 120

  1. #1
    Regular Member SarahP's Avatar
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    Default boost sensor on the 120

    Hi where is the boost sensor on the 1.9 cdti estate (120)

    Thanks

  2. #2
    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



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    Quote Originally Posted by SarahP View Post
    Hi where is the boost sensor on the 1.9 cdti estate (120)

    Thanks
    Between the body of the EGR valve and the engine/manifold at the rear of the engine - you need to remove the EGR to get access to the one bolt that holds it in place and then pull it out. If your thinking of cleaning it be very careful as its quite delicate - use carb cleaner and a small soft tooth brush to clean it.

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    Regular Member Samdy Gray's Avatar
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    No need to remove the EGR to get at it (not on my 120 anyway).

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    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



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    Quote Originally Posted by Samdy Gray View Post
    No need to remove the EGR to get at it (not on my 120 anyway).
    No not if you've got a very short allen/torx key - a lot easier if its out the way

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    Vehicle : 1.9CDTi(120)SRi


    Engine : 1.9DT

    Year : 05

    Mileage : 100k

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    You can use a torx bit and a pair of pliers there is just enough room, but slit easier if you undo the egr retaining bolts.

  6. #6
    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



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    Quote Originally Posted by Casey View Post
    You can use a torx bit and a pair of pliers there is just enough room, but slit easier if you undo the egr retaining bolts.
    Mine is held in place with a torx bolt but my mates I did the other week had a hexagonal allen screw - wouldn't have thought you could get it tight enough with a pair of pliers.

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    Vehicle : 1.9CDTi(120)SRi


    Engine : 1.9DT

    Year : 05

    Mileage : 100k

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    It doesn't need to be tight, the sensor is held in position by its O ring, the retaining screw only needs to be nipped up. So many things get over tightened these days causing many a headache.

  8. #8
    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

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    Quote Originally Posted by Casey View Post
    It doesn't need to be tight, the sensor is held in position by its O ring, the retaining screw only needs to be nipped up. So many things get over tightened these days causing many a headache.
    Yea true - but if its not tight enough the vibrations of the engine will soon shake it loose - the O ring is a tight fit but that is intended to be a seal not to hold it in place. I suppose if you had the inclination you could find the correct torque setting for the bolt and tighten it to that setting.

  9. #9
    Regular Member SarahP's Avatar
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    Thanks peeps... where do you get the carb cleaner from?

  10. #10
    Regular Member Chris B's Avatar
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    Quote Originally Posted by SarahP View Post
    Thanks peeps... where do you get the carb cleaner from?

    http://www.ebay.co.uk/itm/Choke-and-...item416433cf54

    or

    http://www.ebay.co.uk/itm/500ML-CARB...item58928cd185

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