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Terraclean problem

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  • 24-03-2014 9:47pm
    #1
    working fool
    Registered Users Posts: 813 ✭✭✭


    Got my car done today
    06 1.9cdti vectra 100k

    Before I left the engine management light came on
    P0400 gas recirculating fault

    Guy said it probably just cleaned the sensors and are readjusting the ecu

    Cleared the code and two hours later light came back on p0400 again

    Not sure what the problem is ?


Comments

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    #2
    toyotaavensis
    Registered Users Posts: 1,331 ✭✭✭toyotaavensis


    Does the car have an EGR valve?


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    #3
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    toyotaavensis wrote: »
    Does the car have an EGR valve?


    Yes it does
    I've only had the car a week or so and had no problems with it


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    #4
    toyotaavensis
    Registered Users Posts: 1,331 ✭✭✭toyotaavensis


    The EGR valve might have some dirt caught in it. I would give it a clean if you can do it yourself as the cleaner is only 10-15 euro from a motor factors.


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    #5
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    I had the same trouble with an avensis
    It had the inlet mainifold clogged up

    Strange that the fault on the vectra only came up after the terraclean

    Ohh the car is much smoother and accelerates much quicker after the terraclean


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    #6
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    I'm going to open it up at the trottle body this evening and have a look


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    #7
    cletus
    Registered Users Posts: 7,883 ✭✭✭cletus


    Google would suggest that P0400 refers to your EGR valve, as toyotaavensis stated


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    #8
    Gokei
    Closed Accounts Posts: 795 ✭✭✭Gokei


    working fool wrote: »
    I had the same trouble with an avensis
    It had the inlet mainifold clogged up

    Strange that the fault on the vectra only came up after the terraclean

    Ohh the car is much smoother and accelerates much quicker after the terraclean
    Where did you get it done?


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    #9
    B2AUDI80
    Registered Users Posts: 50 ✭✭B2AUDI80


    Common problem the egr sticking on the vectra , take it off and give it a good clean , take the solenoid off it aswell and give the egr a good working to completely clear any crap in it , brake cleaner or carb cleaner will do the job or just use some kero in a tub and use a brush

    Strangely I wouldve thought the whole point of the terraclean treatment would be to prevent/cure things like this ??


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    #10
    shamwari
    Closed Accounts Posts: 2,142 ✭✭✭shamwari


    working fool wrote: »
    I've only had the car a week or so and had no problems with it
    So why did you get it Terracleaned??


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    #11
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    Gokei wrote: »
    Where did you get it done?

    Done it myself
    Fairly easy job about an hour and a half
    Just had to remove the 4 injector pipes to get it off
    Took about a biscuit tin full of carbon out of it


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    #12
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    shamwari wrote: »
    So why did you get it Terracleaned??

    Guy I bought it off only drove it the odd weekend short journeys
    It's done 4k in a year
    Plus my mate knows him and reckons it was been filled from the farm diesel tank

    Terraclean really made a big difference on throttle response and it pulls like a train now

    Must have dislodged dirt that went into the egr system


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    #13
    B2AUDI80
    Registered Users Posts: 50 ✭✭B2AUDI80


    working fool wrote: »

    Must have dislodged dirt that went into the egr system

    probably right ,
    its more than likely only half cleaned the egr tbh ,,theres normally a fairly thick paste like substance created there from the oil mist coming from the the turbo mixing with the carbon/soot in the system, my guess its only half dissolved this and its now likely now ran in around the shaft for the egr causing it to stick and throw up a code


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    #14
    shamwari
    Closed Accounts Posts: 2,142 ✭✭✭shamwari


    working fool wrote: »
    Guy I bought it off only drove it the odd weekend short journeys
    It's done 4k in a year
    Plus my mate knows him and reckons it was been filled from the farm diesel tank

    Terraclean really made a big difference on throttle response and it pulls like a train now

    Must have dislodged dirt that went into the egr system
    That would be a reason not to buy it. Anyhow, that's the Fiat engine in that. The EGR system on those is easy to work on. The do coke up something fierce. Will check later, there may be a site with a step by step guide to cleaning the system. If you know someone with a scantool, get them to perform an actuation test on the solenoid.


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    #15
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    Right I took it apart

    The little plastic inlet manifold pressure sensor was totally clogged with gunk

    The egr valve looked ok when I took it off
    Inlet and outlet pipes were fine

    When I split it from the electric solonoid
    The inside was totally stuffed up with carbon
    It was caked all around the the valve spring
    Cleaned it out with carb cleaner
    Took ages to free it from sticking

    I cleared the fault codes and no more errors
    Soo far

    But there's a lot gunk on the inner walls of the inlet manifold

    Now it's got hot gasses returning through it from the egr it might shift it .


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    #16
    Truckermal
    Registered Users Posts: 6,048 ✭✭✭Truckermal


    So much for Terraclean eh....


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    #17
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    Truckermal wrote: »
    So much for Terraclean eh....

    In fairness it done a great job
    Car is far more smooth running and acceleration is a lot better

    Just the egr clogging was a side effect
    The terraclean only treats the fuel end of things really


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    #18
    B2AUDI80
    Registered Users Posts: 50 ✭✭B2AUDI80


    Inlet manifold is a disaster for clogging up on them , map sensor can be buried completely at times alright , have had to strip a good few of them , astras an saabs too , hate them at this stage !!!


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    #19
    shamwari
    Closed Accounts Posts: 2,142 ✭✭✭shamwari


    This guide is for cleaning the EGR valve. It's in a Fiat but the same valve is used and the same procedures apply


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    #20
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    In retrospect
    Considering the state of the egr valve
    It's fairly certain the guy I bought the car off knew about it and got the fault codes cleared from the car before he sold it .


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    #21
    cgarrad
    Registered Users Posts: 1,611 ✭✭✭cgarrad


    working fool wrote: »
    Done it myself
    Fairly easy job about an hour and a half
    Just had to remove the 4 injector pipes to get it off
    Took about a biscuit tin full of carbon out of it

    Do you have a link to show how to do a DIY version of Terraclean?

    I thought you need a machine on a trolley to do it?


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    #22
    working fool
    Registered Users Posts: 813 ✭✭✭working fool


    cgarrad wrote: »
    Do you have a link to show how to do a DIY version of Terraclean?

    I thought you need a machine on a trolley to do it?

    Sorry it was the de-carbonising of the manifold that I did myself
    The terraclean is by machine only


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    #23
    cgarrad
    Registered Users Posts: 1,611 ✭✭✭cgarrad


    working fool wrote: »
    Sorry it was the de-carbonising of the manifold that I did myself
    The terraclean is by machine only

    Sorry, read that wrong ;-)

    Thanks.


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