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Thread: Engine management light problems.

  1. #1
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    confused Engine management light problems.

    Hi, new to this forum and hoping to get a bit advice.

    I bought a 55 plate Vectra CDTI SRI 120. The car had been sitting out of tax for a few weeks prior to purchase. When I test drove it and drove it home (about 50 miles) there were no faults/lights. The following day after doing about 20 miles the engine management light came on but car still drove A1. When I stopped the car for about 20 mins then restarted it to head home the engine management light was out but emissions light was on. I stripped and cleaned the egr (found instructions on this forum which is ace btw) and light stayed on, car drove a lot smoother though. Light was still on so took to a mate at a garage yesterdday who put it on machine and came up with code P0400...code deleted no problem and car was fine...no more faults detected.
    Took car to work this morning and engine light came on after about 4 miles.....any ideas as to whats going on?? It is still running great. It was serviced about 200 miles ago but not sure if that was before or after being parked up.

    Any ideas/help greatly appreciated!!
    Last edited by ped73; 23rd July 2012 at 13:42.

  2. #2
    Regular Member dilan's Avatar
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    Egr valve mate.... P0400, relates to get valve... Hth...

    Sent from my iPhone using Forum Runner

  3. #3
    Regular Member dilan's Avatar
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    Egr valve mate..... P0400 relates to get valve... Have a check around the hoses to see if any splits ... Hth

    Sent from my iPhone using Forum Runner

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    Thanks - will check the hoses tonight.
    I cleaned the egr valve ysterday and got the emission warning light put out but now it's the engine light and is showing no faults!

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    Vehicle : vectra c

    Trim : ls

    Engine : 1800

    Year : 04

    Mileage : 132000

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    whats the cars mileage on ?

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    Just reached 93000.

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    Vehicle : vectra c

    Trim : ls

    Engine : 1800

    Year : 04

    Mileage : 132000

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    there are loads of threads on here regarding the egr valve

    have a read of this first post

    http://www.vectra-c.com/forum/showth...posting-thanks

  8. #8
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    Vehicle : vectra c

    Trim : ls

    Engine : 1800

    Year : 04

    Mileage : 132000

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    if the cars done 93000 miles and thats the only egr valve its had

    then i think its time for a new one

  9. #9
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    Would it still be that if the code for it got cleared after I cleaned it though? The emission light hasn't come back on just the engine management light.

  10. #10
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    Vehicle : vectra c

    Trim : ls

    Engine : 1800

    Year : 04

    Mileage : 132000

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    if theres no codes stored after a few starts the light will go off

    have you got any power loss?

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