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Thread: P0400-F8 Exhaust Gas Recirculation Valve Feedback Signal Malfunction

  1. #1
    Regular Member Vectra Forever's Avatar
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    Unhappy P0400-F8 Exhaust Gas Recirculation Valve Feedback Signal Malfunction

    Afternoon everyone.
    Just looking for qick response here as this is my own fault.

    I has my inlet manifold off today for a full de-coke and I could not get the EGR off. I tried everything including a 20 min drive to warm it up. I gave up after 30 minutes when I snapped off the upper right mount of the EGR.

    I did clean the manifold and its really clean. Obviously the EGR is now kinda dead. I get P0400-F8 as the title. Is this the valve that's gone or something else? I've read ages ago but can't think where that the P0400 code could be a manifold sesnor not picking up the difference in pressure.

    I've ordered a new EGR £320 best I could find and that hurt. Should I just replace and hope or maybe another sensor and I've wasted over £300?

    This thread says I can cut my sensor wire. I think this is a bad idea.
    http://www.vectra-c.com/forum/showthread.php?t=95561

    Thank you.

  2. #2
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

    Mileage : 73350

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    P0400 is your egr valve fault code
    £320 is a bit steepfor a egr try this link £199 is the best offer on here
    http://shop.ebay.co.uk/i.html?_nkw=v....c0.m270.l1313#
    Driving vauxhall,s for 30 + years
    and still loving it

  3. #3
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

    Mileage : 73350
    Driving vauxhall,s for 30 + years
    and still loving it

  4. #4
    Regular Member Vectra Forever's Avatar
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    Quote Originally Posted by bobssignum View Post
    Hello. Thanks for the info on ebay. I did have a look earlier and couldn't see anything that I could get quick for under £270. Thanks to your link I have now ordered one at £226 with delivery on Tuesday pre-10am and cancelled the order with Unipart.

    Is my EGR totaly gone or salvagable?

    Cheers

  5. #5
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

    Mileage : 73350

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    If it is the water coolant hose that has broken then probably yes it is not salvageable , If you can post a pic of the broken part would help to clarify the situation
    Driving vauxhall,s for 30 + years
    and still loving it

  6. #6
    Regular Member Vectra Forever's Avatar
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    Quote Originally Posted by bobssignum View Post
    If it is the water coolant hose that has broken then probably yes it is not salvageable , If you can post a pic of the broken part would help to clarify the situation
    Here we are. Taken today, note top pipe missing and right lug snapped off. Error seems to point to feedback problem though???


  7. #7
    Regular Member Vectra Forever's Avatar
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    Here is the other bits of the valve that came off while trying to get it off.


  8. #8
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

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    yes i would definnetly say that your egr should be replaced , what did you hit it with a sledge hammer ?.
    Last edited by bobssignum; 24th June 2011 at 21:33.
    Driving vauxhall,s for 30 + years
    and still loving it

  9. #9
    Regular Member DAVIDD88's Avatar
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    what engine is it as thats seems expensive i got ming new £80 for 1.9 cdti

  10. #10
    Regular Member Vectra Forever's Avatar
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    Quote Originally Posted by vectrac150cdti View Post
    what engine is it as thats seems expensive i got ming new £80 for 1.9 cdti
    Chaps,

    It's a 2002 2.2DTI Y22DTR.

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