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Thread: common hesistation between revs

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    Default common hesistation between revs

    Hi guys, hoping to pick your brains.

    I have had the common hesistaion problem for some time now and have recently decided to start reading up on it. So i have read nearly every thread realting to this problem but none seem to have cured it. My car is A 2006 Vectra Estate Sri 150.

    In the past week i have done th following:

    - Removed egr valve and cleaned (wouldnt say it was bad in the first place.
    - removed boost sensor and cleaned (again wouldnt say it was bad)
    - removed throttle body and cleaned (again not bad)
    - replace boost pipes with new (felt it was worse when i did this so put old back on)
    - new air filter with air restrictor plastic removed
    - new fuel filter
    - body to engine earth cable fitted
    - filter cleaned in boost valve (should i remove this? my valve isnt able to split so cant clean)

    Was going to change the oil today, not that would cure it but i have also found my sump plug to be complety knackered...

    anyway is there anything else i can do to get rid of this hesitation.

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    Regular Member jsnlvxr's Avatar
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    Default

    have you tried the 3rd injector wiring loom?

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    Default

    no as i have the blue coded ones so didnt bother.. how do i check this out?

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    Default

    i think like you say the blue ones are the new type so should be ok. im aure someone will clarify

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    Regular Member stevie16v's Avatar
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    Default

    I had a very bad stutter with the revs between 1k - 1.5k when I bought mine. Turned up to be one of the injectors was on its way out, Got them cleaned and resealed and never had a problem since

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    thats my next thing to do but i dont want to keep throwing money at it left right and centre.. going to try some redex throught it first

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    Default

    It's always worth a try. Got to be honest tho, ain't a fan of redex, if you know someone in the trade then try and get a can of FORTE injector cleaner. It's pretty good stuff, used it in diesel and petrol cars and it's always made a bit of difference. Heres a link for injector cleaning aswell http://www.ebay.co.uk/itm/ULTRASONIC...#ht_5513wt_952

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    Default

    ok mate thanks, will try get som forte cleaner

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    Default

    Quote Originally Posted by jamesb View Post
    ok mate thanks, will try get som forte cleaner
    i wonder if you have read this sorry if you have

    http://www.vectra-c.com/forum/showth...ght=hesitation

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    Default

    yes i have mate, but my valve doesnt have the metal band round it, hence why i havnt tried to split it. Is there a way that the valve can be split?

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