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Thread: 1.9 CDTi 120bhp power problem !!

  1. #1
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    Default 1.9 CDTi 120bhp power problem !!

    signum CDTi 120bhp
    Quick question.
    My car pulls like a train from 1k rpm to about 3k rpm, then its really sluggish ... is this normal ?
    I usually just change gear at 3k because its so useless after that!!

    I did install a digi tuning box, but, its the same, pulls even quicker to 3k then kind of gives up.

    cheers

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    Regular Member Rapala's Avatar
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    Have the fuel and air filters been changed recently?
    Last edited by Rapala; 12th March 2009 at 13:59.

  3. #3
    Regular Member sig63's Avatar
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    Vehicle : Opel Insignia

    Trim : Cosmo

    Engine : 2.0 CDTI

    Year : 2011

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    I would think that this is normal: the maximum torque is obtained between 2000 and 2750 rpm and it drops down above 3000

    is it possible that you are used to petrol engines ?

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    cheers guys.
    Ive always had diesels...this just happens to be the slowest diesel ive owned.
    The tuning box has certainly made a huge difference. I suppose the Signum is a big heavy car for the 120bhp engine.
    Just thought id ask the question in case there was a problem.

  5. #5
    Regular Member sig63's Avatar
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    Vehicle : Opel Insignia

    Trim : Cosmo

    Engine : 2.0 CDTI

    Year : 2011

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    the slowest diesel you've ever owned... or the heaviest one

    the weight for the facelift Signum Z19DT is 1605 kg + another 20 to 50 kg depending on the trim level and options + diesel and your own weight

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    they are a good engine with plenty of low down pull, i wonder if youv'e got an air leak or a split hose, something simple.

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