E200 Kompressor failed emissions

Discussion in 'Engine' started by TheBanjoman, Sep 14, 2019.

  1. TheBanjoman

    TheBanjoman New Member

    Messages:
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    Sep 13, 2019
    Location:
    ireland
    Car:
    Ford Focus
    Hi
    i have a e200 2005 komp

    failed emissions
    I had one fault lambda sensor, I replaced this everything seemed fine



    FIRST TEST

    Low idle

    CO0.67% Above 30% Result Failed



    High Idle

    (3.000rpm) CO.065 VOL% ABOVE 0.20% RESULT FAIL

    NEXT TEST (REPLACED LAMBA SENSOR)

    HIGH IDLE

    CO 0.04% ABOVE 0.30% RESULT PASS

    LOW IDLE

    CO.041 VOL% ABOVE 0.20% RESULT FAIL

    So lamba brought down high idle to near perfect it also brought down low idle from 0.65 to 0.41%
    any suggestions? please
     

    Attached Files:

  2. DITTRICH

    DITTRICH Hardcore MB Enthusiast

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    If the car wasn't fully warmed up when tested? I'm speculating, but higher temperature of catalytic converter will help imho
     
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  3. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    it drove 10km to test centre im sure thats good enough?
     
  4. grober

    grober MB Club Veteran

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    Unless its got a faulty thermostat which delays warm up time- i. e.its open all the time? Normally they should check the engine oil temperature with a probe thro the dip stick tube for the test- might be worth checking on the mot report?
     
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  5. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    I have attached the two Nct reports in the first post

    Oil temperature in

    First
    92%

    Second
    110%
     
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  6. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    Would replacing the 2nd lambda sensor sort this?
     
  7. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    Would replacing the 2nd lambda sensor sort this?
     
  8. Bellow

    Bellow Hardcore MB Enthusiast

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    Don't think so.
    AFAIK, the first Lambda sensor controls fuelling, the second checks that the cat is working.
     
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  9. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    Would the cat be dirty considering the engine would of been running rich due to the 1st lambs sensor being faulty. maybe a cat a clean
     
  10. Bellow

    Bellow Hardcore MB Enthusiast

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    I've not scrutinised all the numbers - but definitely 'rich'?
    Unburned fuel can get to the cat if running lean and there is a misfire or incomplete burning. Cat will take a (thermal) hiding in that scenario and can burn out.
    Not sure about the rich scenario - maybe the chemical action of the cat creates heat enough to burn it also (even though no oxygen - unless a misfire is present).
     
  11. OP
    OP
    TheBanjoman

    TheBanjoman New Member

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    Hi thanks for the reply,

    I have changed both lambda sensors
    Put in a cataclean additive
    Engine flush followed by a oil change with filter
    Also added a stop smoke additive

    Any ideas if this w211 e200 1.8 kompressor has a pcv valve and location?
     
  12. skippyjasper

    skippyjasper Hardcore MB Enthusiast

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    Depends on what kind of driving occurred in those 10km. If all/most was low speed stop and go, then the car was not warm enough.
    Usually a 20km trip at highways speeds works best. Drive directly to the inspection station after that and leave the car idling if possible.


    Sent from my iPad using Tapatalk
     

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