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Thread: Help please please please Engine flat spot

  1. #1
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    Default Help please please please Engine flat spot

    Hi guys, got a problem with my cdti 150, its got a flat spot but wen i say flat spot it goes then will stop for a split second and sort of jump back on to the turbo, ive just cleaned egr valve. It also jerks or miss fire sort of thing when on 1500-2000 revs. Could it be related?

    Any help would be hugely appreciate

    Thanks guys.

  2. #2
    Regular Member AntSSSS's Avatar
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    Vehicle : Vectra Estate

    Trim : SRI

    Engine : CDTI 150 (Z19 DTH)

    Year : 2008

    Mileage : 100k

    Default

    Has your third injector wiring loom been changed? common problem.

  3. #3
    Regular Member gaz1965's Avatar
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    Vehicle : Vectra C

    Trim : SRI 150

    Engine : 1.9 CDTI

    Year : 2007

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    How can you tell if it's been changed?

  4. #4
    Regular Member AntSSSS's Avatar
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    Vehicle : Vectra Estate

    Trim : SRI

    Engine : CDTI 150 (Z19 DTH)

    Year : 2008

    Mileage : 100k

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    basically the third injector along will have a different plug... ive posted a pic somewhere I think - gimmie 5 mins , will search.

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    Hi mate yes this been done but noticed the bar what connects to the swirl flaps has come off are these easy to put bk on?

  6. #6
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    There is a how2 about this - and to repair the bar for about £1 with tap washers

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  8. #8
    Admin & Membership Manager bigmac's Avatar
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    Vehicle : insignia

    Trim : irmscher

    Engine : 2.0 cdti

    Year : 2009

    Default

    Moved to correct section

    Irmscher Insignia CDTI 130

    MOD'S...Irmscher front spoiler, Irmscher mats, Irmscher door pins, Irmscher rear spoiler, Irmscher grille, Irmscher skirt & exhausts,Irmscher Roof spoiler MOD'S TO COME..Side skirts,Wheels

  9. #9
    Regular Member ONEMINUTESILENCE's Avatar
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    I had the same problem, mine hesitated at 1800rpm, EGR was replaced less than a year ago. I unplugged EGR and hesitation gone. Try doing that 1st, if it resolves the issue blank it off, just try a search on EGR blanking there are loads of posts/threads

  10. #10
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    But first try repairing what you know is broken (swirl bar fallen off). See how that goes, then look at other areas

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