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Thread: Fault Code Help

  1. #1
    Regular Member rmg1's Avatar
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    Vehicle : Vectra C Sri V6 CDTi

    Trim : SRi

    Engine : 3.0 V6 CDTi Z30DT

    Year : 2005

    Mileage : 121000

    Default Fault Code Help

    I went out and tried the pedal test on my Z30DT and i'm coming up with codes

    P0638

    P0400

    P1900

    if anybody could tell me what these actually mean.

  2. #2
    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

    Default

    Can't help on the others without looking them up but p0400 is egr flow malfunction

  3. #3
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    P0638 looks like Throttle Sensor

  4. #4
    Regular Member Ben50n's Avatar
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  5. #5
    Regular Member C-Owner's Avatar
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    Default

    P1900

    Can be a generic code produced by the other faults.

    But

    IIRC on the V6 it's due to interrupted DPF re-gens if fitted.



    Sounds like the car needs an Italian tune up ================
    Last edited by C-Owner; 26th September 2012 at 20:28.

  6. #6
    Regular Member rmg1's Avatar
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    Vehicle : Vectra C Sri V6 CDTi

    Trim : SRi

    Engine : 3.0 V6 CDTi Z30DT

    Year : 2005

    Mileage : 121000

    Default

    How do I get her to do a regen, I drove about 13miles home tonight at 70mph in 4th @ 3000rpm but as soon as I slowed down to turn in at a junction she went into limp mode again. There was also a new egr valve fitted last week.which I thought would help as the last that was the fault that was showing.

  7. #7
    Regular Member Ben50n's Avatar
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    Default

    Can you force a regen with Tech 2 etc?

  8. #8
    Regular Member rmg1's Avatar
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    Vehicle : Vectra C Sri V6 CDTi

    Trim : SRi

    Engine : 3.0 V6 CDTi Z30DT

    Year : 2005

    Mileage : 121000

    Default

    I'm hoping to get tech2 plugged in within the next week

  9. #9
    Regular Member rmg1's Avatar
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    Vehicle : Vectra C Sri V6 CDTi

    Trim : SRi

    Engine : 3.0 V6 CDTi Z30DT

    Year : 2005

    Mileage : 121000

    Default

    I have a couple of questions....Are the DPF cleaners any good?How much would a new DPF cost?And can you get a DPF bypass pipe for the Z30DT?

  10. #10
    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

    Default

    You won't need new DPF but their usually in region of £800

    the cleaners are more of gimic.

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