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Thread: Sierra 3 door problems

  1. #1
    Tyre Kicker

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    Sierra 3 door problems

    Hello @ll
    My name are mike, and i live in austria near vienna
    The last 17 years, i drive a cosworth 3 door with follow technics
    803 injectors
    3 bar map sensor
    RS5000 intercooler
    T3 turbo with 360° bearing
    Cometik multilayer head gasket
    Long head stud
    Boost 1,5 - 1,8 bar
    Mapping by gabat austria


    At the last years, i have a minimal problem with piston pins

    Last week, i repair the engine and give new pistons and conrods
    Befor repair the car runs perfect

    My problem
    Finish the repair
    I wont to start, but the engine make misfire und runs as a "tractor"
    I control all sensor but no problems
    This day, i give a new crank sensor
    Car runs and i need all ok

    But when i drive, with the 3th gear, up to 4700/4800 rpm cut out the injection
    Give 4.th gear the same but by 4200 rpm

    Drive slow and make new test, the same problem

    I dont now, what the problem

    I hope, you can help me

    Sry for my english, im not the best ;-)

    Greats from Austria
    Last edited by macspeed; 23-04-2017 at 17:04.

  2. #2
    Tyre Kicker

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    Re: Sierra 3 door problems

    Click image for larger version Name:	BILD0821.jpg Views:	31 Size:	49.6 KB ID:	80737Click image for larger version Name:	BILD0829.jpg Views:	32 Size:	51.0 KB ID:	80738

  3. #3
    Pole Position Decade Plus User morcheen's Avatar

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    Re: Sierra 3 door problems


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  5. #4
    Racer Decade Plus User Adam B's Avatar

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    Re: Sierra 3 door problems

    Have you checked the spark plugs aren't fouled?

    My Project... Fiesta D-TEC

  6. #5
    Tyre Kicker

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    Re: Sierra 3 door problems

    Spark plugs are new

    I search the last week in many forums ( passionford ect bigturbo HP and another ) and i have all technical papers , but i dont now whats the problem
    in the next days, i give another map sensor, the symtome are this way
    Last edited by macspeed; 25-04-2017 at 21:40.

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