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Thread: Z22YH High Pressure Fuel Pump

  1. #1
    Regular Member johnmac's Avatar
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    Default Z22YH High Pressure Fuel Pump

    Hi

    has anyone attempted to fit one of these by thereself? Is it easy enough to do? (looks like just 3 bolts)

    Certain my pump, sorry, my 2nd pump has failed after 16 months.Symptoms now are fault code p1191, ok slowly accelerating to 70mph but when going up an incline or pushing hard, car runs like it has kangaroo petrol. I can source a pump for around £250 - £300 but would rather have a go at fitting myself than paying the Dealer. Only thing I can see that may be an issue is disconnecting the pipe that has a some sort of weird 'lock' at the ends (blue clip)

    Any pointers appreciated. Especially - how do you know when you buy one that it is the newer/modified/improved version of the pump as opposed to the old,flawed design?

  2. #2
    Regular Member Sean-2.2Direct's Avatar
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    I have bought a spare just incase and it looks really easy just depressurise the system first

  3. #3
    Regular Member mark1319's Avatar
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    My Uncle just changed his and my Dad fitted it and said it was a piece of pi$$, just release the pressure before hand.

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    Regular Member steve1975l's Avatar
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    Quote Originally Posted by johnmac View Post
    Hi

    has anyone attempted to fit one of these by thereself? Is it easy enough to do? (looks like just 3 bolts)

    Certain my pump, sorry, my 2nd pump has failed after 16 months.Symptoms now are fault code p1191, ok slowly accelerating to 70mph but when going up an incline or pushing hard, car runs like it has kangaroo petrol. I can source a pump for around £250 - £300 but would rather have a go at fitting myself than paying the Dealer. Only thing I can see that may be an issue is disconnecting the pipe that has a some sort of weird 'lock' at the ends (blue clip)

    Any pointers appreciated. Especially - how do you know when you buy one that it is the newer/modified/improved version of the pump as opposed to the old,flawed design?
    Same design isn't it?

  5. #5
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    It really is easy, 5 mins job. 3 bolts, then release the blue clip. I didnt de pressurise on mine, just wrapped a rag around the pipe to soak any petrol up. Dont know how to tell the difference between old and new pumps though.

  6. #6
    Regular Member johnmac's Avatar
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    Open to 'all'

    Anyone offer any pointers on how to source a pump as cheap as possible? The Dealer has knocked some money off over the phone and at least that way you sort of know what you are getting should any issues occur, but we are still talking £300 +

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    Regular Member Sean-2.2Direct's Avatar
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    Quote Originally Posted by johnmac View Post
    Open to 'all'

    Anyone offer any pointers on how to source a pump as cheap as possible? The Dealer has knocked some money off over the phone and at least that way you sort of know what you are getting should any issues occur, but we are still talking £300 +
    Tried Pming you mate your box is full.

    got mine from ebay the car was a write off from the rear for 7 quid buying back up parts just in case

  8. #8
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    Vehicle : Vauxhall Astra-J

    Trim : Elite

    Engine : 2.0 CDTi

    Year : 2013

    Default

    Quote Originally Posted by DAVEYBOY View Post
    Dont know how to tell the difference between old and new pumps though.
    Didn't someone recently post some serial numbers of the batch of pumps affected - Or was I dreaming? Maybe a search of Siemens will find it.
    Last edited by Big Dave; 4th September 2009 at 10:49.

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    Quote Originally Posted by Big Dave View Post
    Didn't someone recently post some serial numbers of the batch of pumps affected - Or was I dreaming? Maybe a search of Siemens will find it.
    Yeay, that would be interesting. Is that right? And I have been warned to buy pumps on ebay since it's probably old ones, or worse: those thas has been replaced already.
    But I'm more intrerested in the question: how can you tell if it's the pump or the regulator that is failing?

  10. #10
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    Vehicle : Vauxhall Astra-J

    Trim : Elite

    Engine : 2.0 CDTi

    Year : 2013

    Default

    Quote Originally Posted by nizzehult View Post
    But I'm more intrerested in the question: how can you tell if it's the pump or the regulator that is failing?
    When I had the fault code (p1191), my dealer changed both - as advised to do by Vauxhall.

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