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View Poll Results: Tuning box / pump failure

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  • Pump failure with tuning box fitted

    2 6.45%
  • Pump failure NO tuning box fitted

    3 9.68%
  • Tuning box fitted no problems

    26 83.87%
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Thread: Tuning box / Pump failure

  1. #1
    Regular Member Diesel Dude's Avatar
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    Default Tuning box / Pump failure

    How many CDTI owners have suffered fuel pump failure and how many had a tuning box fitted.

  2. #2
    Regular Member Caterman's Avatar
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    Vehicle : Signum

    Trim : Elite

    Engine : 3.2 V6

    Year : 05

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    Me! On my old 1.9 the fuel pump threw a fault code up on Tech 2 so they changed it

  3. #3
    Regular Member Gsi3.2's Avatar
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    As above.. our old 1.9 150 ate ( amongst many many other parts) it's entire high pressure fuel system...

  4. #4
    Regular Member VectraV6CDTi's Avatar
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    My fuel pump on my 3.0 V6 packed up after 3 or 4 months with a tuning box on. The Euro 4 3.0 V6 does not like to be tuned (others have had issues too). I had problems with my car the minute I put a box on. I tried 2 boxes and both caused issues with flat spots and engine cutting out on acceleration . Finally the fuel pump packed up. Had that changed, sold the box and since then had no problems whatsoever with the running of it.

  5. #5
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    I don't think that anyone actually offers a remap for the V6 these days anyway (certainly not as many as there used to be).Parts on the V6 engine are extremely expensive (as some have found to their cost).There are a good number of cars coming onto the market now that supposedly have 'tamper-proof' ECU's.I think that possibly some manufacturers are beginning to get the message.

  6. #6
    Regular Member ditchp's Avatar
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    Vehicle : Vectra cdti estate

    Trim : Get a

    Engine : Dirty diesel

    Year : 2006

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    no fuel pump probs here and box fitted for a good while now
    Midlands Mod Shop - NFFC.

  7. #7
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    Quote Originally Posted by ditchp View Post
    no fuel pump probs here and box fitted for a good while now
    I suspect that the fuel system on your 120 is pretty much the same as the 150 anyway (I could be wrong),so you aren't likely to get any serious bother.Come to think of it from a reliability point of view,the 120 is possibly the most tunable diesel Vectra there is.

  8. #8
    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    Never had a pump fail on me, even running at 2300bar.

  9. #9
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    Quote Originally Posted by nutron View Post
    Never had a pump fail on me, even running at 2300bar.

    You've obviously got a "good'un".

  10. #10
    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

    Default

    Two so far!

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