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Thread: power loss

  1. #1
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    Unhappy power loss

    hi ive just gor a vectra sri 2.2 dti drives realy nice at normal raod spead but some times when i put my foot down for fast accelaration in 2nd and 3rd it picks up speed realy fast then the power just goes dead if i keep my foot down it picks up again it a 2002 vectra

  2. #2
    Regular Member CDTi-SRi-Matt's Avatar
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    How long does it go dead for? my CDTi does this sometimes just before the turbo kicks in, only when my foot is right down though. Its like ive caught the turbo by suprise and its not ready or something. Only dies for a split second though.

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    it only dies for about 2 to 3 seconda then the power comes back

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    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

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    Gents, try cleaning the boost sensor.
    Basically the MAP (manifold absolute pressure) sensor detects a sudden drop in pressure and lets the ECU know that the demand from the engine has suddenly increased e.g. when accelerating.
    There is a how 2 thats applicable to both as they use the same boost sensor.

    Try this if it doesn't work get back on

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    thanks i will try that today let you know if it works

  6. #6
    Regular Member Fash's Avatar
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    Would cleaning the egr work on a dti too or don't the have one that clogs up like our cdti's do ? lol

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    i cleaned the mas flow sensor seems to run alot smoother only problem is the spanner is on i get code 0103 now how long till it resets or how to reset

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    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

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    Quick reset is with OP Com or Tech 2.
    Could disconnect battery for about 30 mins but make sure you've the radio code.
    Of greater concern how did you clean the MAF. At best a quick spray with Iso propyl alcohol or brake cleaner, shouldn't actually touch the wires etc

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    just used cotton buds didnt touch with anything else . what is tech 2 also wher is the boost sensor un 2002 sri dti not sure what im looking for

  10. #10
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    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

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    Tech 2 is the dealer plug in computer.
    Boost sensor is located as follows.
    Remove engine cover As you face the engine on the front right hand side you will see a thick black pipe, this joins a silver manifold. Just after the join and to the rear of the manifold is the boost sensor, thers an elec plug and its held in with 1 bolt. Will need to gently wiggle it out as it has a seal on it.

    DTC p0103 is MAF sensor high input. Could be the MAF or wiring

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