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Thread: how can I measure boost, air mass and air-fue ratio

  1. #1
    VIP-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

    Question how can I measure boost, air mass and air-fue ratio

    guys is there a program i can buy for my laptop that will allow me to measure the boost pressure, air mass and the air to fuel ratio.. I know i can get them if i take the car to a rolling road but i want to be able to read/record the data live on a laptop.. I am not wanting to add gauges just for this, i have boost gauge although not fitted.

    any ideas?
    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



  2. #2
    Full Member bobssignum's Avatar
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    Dont quote me on this nige but i think this is a feature on a tech 2 . give plasma a ring/pm he should be able to confirm or not
    Driving vauxhall,s for 30 + years
    and still loving it

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    Regular Member signumturbo04's Avatar
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    i'm 99% sure its on op-com too

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    Regular Member Aikon58's Avatar
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    Quote Originally Posted by signumturbo04 View Post
    i'm 99% sure its on op-com too
    Looked at mine today using that

  5. #5
    VIP-Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

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    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    what, i can measure all those with opcom? i guess i need to have a closer look at it, not sure where i look to get those figures recorded while car is in motion though..
    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



  6. #6
    Regular Member lee gsi's Avatar
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    Also you can buy a bluetooth ELM427 interface and get app's which will read all that sort of data (And G forces)

  7. #7
    Regular Member rushy's Avatar
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    I'm sure you can access a hidden menu on full can cars BC's that tells you all that info live. No need for opcom or Tech 2.

  8. #8
    VIP-Member Caveman_nige's Avatar
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    now that sounds even better... my car is a chassis 5, will I have that option and if i do i don't suppose you could give me a tip as to where to access it please mate..?
    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



  9. #9
    Regular Member Aikon58's Avatar
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    Quote Originally Posted by Caveman_nige View Post
    what, i can measure all those with opcom? i guess i need to have a closer look at it, not sure where i look to get those figures recorded while car is in motion though..
    Click on engine once you put your car details in.
    Then measuring blocks i think it is.
    I tried to do a regen in programming,but it wouldn't do it,but that could be because my laptop is old and only has usb 1.0 on it,so it can't read the info needed to do it quick enough

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    Regular Member zafira's Avatar
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    Try search in op-com under:
    -engine
    -output test
    You will find boost pressure here. Maybe air mass and air-fue also.
    On boost pressure you can look at "boost pressure comand" and "boost pressure". Thise are show as kpa (100 kpa = 1 bar = 14,5 psi) You might adjust for barometric pressure. So if it shows 240 kpa, boost pressure are 240 kpa -100 kpa (barometric pressure) = 140 kpa/1,4 bar.

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