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Thread: Where is the fuel pump/ecu???

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    Default Where is the fuel pump/ecu???

    Hi can someone please give me an idea of where the fuel pump/ecu is? I believe it to be behind the battery cover, is it the unit with the small pipes coming out of the top?? Sorry to be a bit blonde....

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    i forgot to say i have a 2003 vectra 2.0dti......oooops

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    Vehicle : Vectra

    Trim : Sri

    Engine : Z19DTH

    Year : 2005

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    On to 2.0 dti the fuel pump is located to the left of the engine as you look at it from the front and it had its own ECU (pump control unit PSG5) on top with a multiplug. There is also an engine management ECU connected to the PSG 5 by a CAN system. Most of the test instructions concentrate on the PSG5 control unit, I have never heard of any issues with the engine management ECU on this system.

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    hi thanks steel, i cant seem to find it on that side, to confirm its not on the same side as the battery then?

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    Regular Member Steel's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : Z19DTH

    Year : 2005

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    If it's a 2.0 dti the pump is bolted to the front of the engine on the left hand side looking from the front of the car, just follow the pipes from the cylinder head, you can't miss it

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    Regular Member Steel's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : Z19DTH

    Year : 2005

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    Don't follow the pipes with the engine running by the way, if there is any kind of leak it can penetrate the skin!

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    sorry, not to good with engines... I am thinking of getting a tuning box, i know its risky though

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    Regular Member Steel's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : Z19DTH

    Year : 2005

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    Never fitted a tuning box to my old dti but my guess would be that it plugs into the PSG5 multiplug on the pump not into the ECU. Its a wierd type of plug with a kind of diagonal slide lock that holds it in place, this is the same plug used to interrogate the PSG5 controller which regulates the fuelling.

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    i am guessing plugs into the top of the ecu then? that seems the right shape as you described it, as its an all in one system with fuel pump, here is the item soo what you think?????
    http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA:IT&ih=007

  10. #10
    Regular Member Steel's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : Z19DTH

    Year : 2005

    Default

    Thats the baby, it probably tricks the fuel quantity solenoid which is buried inside the pump into letting more fuel it. The fuel quantity solenoid is the electronic bit in the pump that fails by the way!

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