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Thread: Boost gauge help

  1. #1
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    Default Boost gauge help

    When i bought my vectra 1.9cdti it had a boost gauge fitted and im just a bit confused if its working properly or not. The car seems to boost fine with no leaks etc. Heres a picture of it on idle



    As you can see it sits around 23 at the bottom numbers and when i put my fut down on full boost it goes up to around 12 on the bottom part of the numbers. It basically never goes below 10 towards zero.

    So is my boost gauge working properly and if so how do i read what boost its running

  2. #2
    Regular Member chrosty's Avatar
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    i had the same problem with mine mate. i think you will find you have it connected to the wrong vacuum pipe so its not reading the boost correctly. which pipe is it connected to ? any pics of where it is connected then ill be able to see if it is where mine was connected before i corrected it.

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    Its connected to the left hand side of the bcs ill try and get a picture up later

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    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

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    thats right on idel does it go up when u drive it and floor it
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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    Quote Originally Posted by paulvectrac View Post
    thats right on idel does it go up when u drive it and floor it
    Yeah but when I floor it shouldn't it go on the positive top side of the numbers rather than the bottom numbers

  6. #6
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

    Default

    That's right then mate
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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    so even though its on the bottom side and is at 23 on idle and when i boot it goes up to 12 is that right?

    Heres a pic to where its connected, its the clear pipe


  8. #8
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

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    That's correct mate it measures vac on idle as there is no boost when idleing then when I drive or rev up the car will creat boost So it moves up the gauge
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

  9. #9
    Regular Member ScotsDragon's Avatar
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    Vehicle : Vectra

    Trim : SRI

    Engine : 1.9 CDTI 150

    Year : 2007

    Mileage : 50000

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    If the your car is a diesel you will not get a boost reading from there, you have to plumb into the large pipe coming from intercooler, You will not get a vacuum reading from a diesel either,, Here some reading for you http://www.vectra-c.com/forum/showth...ht=boost+gauge

  10. #10
    North West Regional Organiser paulvectrac's Avatar
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    Year : 2007

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    well its measuring vac in that picture
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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