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Thread: Teach the newbie !

  1. #1
    Regular Member David_SRi_2.2DTi's Avatar
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    Red face Teach the newbie !

    I've been milling around the forums now for a while and have seen several terms which had made me scratch my head and look blank

    Tech2, Canbus, fuel rail?

    ...anyone want to enlighten me

  2. #2
    Regular Member Maverick's Avatar
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    Tech 2 is the diagnostic tool used by Vauxhall dealers to find faults etc.

    Canbus, this is the digital communitcation used on the car between different systems/ECU's, 99.9% of manufacturers have been using canbus for several years now so it is nothing new.

    Mercedes have started using bluetooth now on prototypes to save on wiring, but not too much success as yet apparently.

    Fuel Rail, this is normally where the injectors are mounted and fed with fuel, they vary in design depending on engine type, for example, 2.2 direct Petrol engines have the injectors mounted directly in the cylinder head and squirt into thecylinder.

    Other designs, like the Astra/Zafira GSi turbo engine have the fuel rail and injectors together but squirt into the inlet manifold.

  3. #3
    Regular Member David_SRi_2.2DTi's Avatar
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    Quote Originally Posted by Maverick View Post
    Tech 2 is the diagnostic tool used by Vauxhall dealers to find faults etc.

    Canbus, this is the digital communitcation used on the car between different systems/ECU's, 99.9% of manufacturers have been using canbus for several years now so it is nothing new.

    Mercedes have started using bluetooth now on prototypes to save on wiring, but not too much success as yet apparently.

    Fuel Rail, this is normally where the injectors are mounted and fed with fuel, they vary in design depending on engine type, for example, 2.2 direct Petrol engines have the injectors mounted directly in the cylinder head and squirt into thecylinder.

    Other designs, like the Astra/Zafira GSi turbo engine have the fuel rail and injectors together but squirt into the inlet manifold.

    ...thank-you Maverick

    The one other question I have been considering asking is what is the difference between the DTI and CDTI engines, I've a 2.2 DTi myself

  4. #4
    Regular Member Caterman's Avatar
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    Vehicle : Signum

    Trim : Elite

    Engine : 3.2 V6

    Year : 05

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    Common Rail is a very high pressure rail that feeds the diesel fuel into the injectors rather than pumped individually.

  5. #5
    Regular Member Maverick's Avatar
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    Quote Originally Posted by Caterman View Post
    Common Rail is a very high pressure rail that feeds the diesel fuel into the injectors rather than pumped individually.
    As Caterman has said.

  6. #6
    Full Member Big Sig's Avatar
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    Quote Originally Posted by Maverick View Post
    As Caterman has said.
    Now I need a turbo to keep up!

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