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  1. #1
    Join Date
    Apr 2018
    Location
    Norfolk, UK
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    Default Help with P2A00 Error

    Hello,

    Hope someone can help.

    My wife has only had her CDI Smart a short while and the Engine Management Light came one today. I have an OBDII Scanner and Torque Pro, and the code I have is "P2A00 Powertrain" "O2 Sensor Circuit Range/Performance Bank 1 Sensor 1"
    I have done some Dr. Googling and its all points to an issue with the O2 Heater Sensor. Now the cars been fine but yesterday my Farther law put some "Forte - Advance Formula Diesel Treatment" in.
    Do you think its changed the emissions and therefor thrown up the fault?
    Do you think i need to Syphon out the contaminated fuel?

    Thank you for you help in advance.

  2. #2
    Join Date
    Apr 2018
    Location
    Norfolk, UK
    Posts
    4

    Default Re: Help with P2A00 Error

    Last edited by matyb2k; 22nd April 2018 at 22:26.

  3. #3
    Join Date
    Jul 2005
    Location
    over here
    Posts
    13,565

    Default Re: Help with P2A00 Error

    This is a post 2009 diesel?

    ow the cars been fine but yesterday my Farther law put some "Forte - Advance Formula Diesel Treatment" in.
    Why did your FIL feel the need to put this in if the car was 'fine' ?
    fq101.co.uk

  4. #4
    Join Date
    Apr 2018
    Location
    Norfolk, UK
    Posts
    4

    Default Re: Help with P2A00 Error

    We have only had it a week so I don't know the fault history of the car, so was wondering if it was related or if I was barking up the wrong tree.

    It's a 2010 so yes

  5. #5
    Join Date
    Sep 2016
    Location
    Burnley
    Posts
    508

    Default Re: Help with P2A00 Error

    I do not think it is the fuel. The 2010 (late 2009) is a complex beast and is prone to this sort of thing. I think the best thing to do is to ignore it for now assuming it isn't putting the engine light on regularly and the car is not in safe mode once you have stopped it and started it again..

    If you have just got the car then take it back and let the people that sold it you sort it out. If you bought privately then one has to consider why it was sold, you may be chasing a long running problem.

    Add your location to your personal details so people know where you are.

  6. #6
    Join Date
    Jul 2005
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    over here
    Posts
    13,565

    Default Re: Help with P2A00 Error

    Quote Originally Posted by matyb2k View Post
    It's a 2010 so yes
    As intimated above, late 2009/early 2010 wa when the smart diesel engine went from EU4 to EU5 emissions spec, this added more sensors and this will be the root of the problem....and it will probably come back again .... and again intermittently.

    Indy Places like BiG Performance can sort it out for you , but as mentioned we need to know where you are

    As for the ‘contaminated’ fuel just use it and don’t bother with the additives ... it doesn’t need it.
    fq101.co.uk

  7. #7
    Join Date
    Jun 2005
    Location
    M5 junction 4
    Posts
    467

    Default Re: Help with P2A00 Error

    The cdi may not NEED a diesel additive ... but it's flippin good fun to drive when you do use it
    2009 Passion Coupe Cdi - RHD
    Previously;
    2007 Passion Coupe - RHD
    2000 Pure City Coupe - LHD
    2001 Pulse City Coupe - LHD
    2003 Passion City Coupe - RHD
    2000 Passion City Coupe Cdi - LHD

  8. #8
    Join Date
    Apr 2018
    Location
    Norfolk, UK
    Posts
    4

    Default Re: Help with P2A00 Error

    Thanks for the replies, the car runs fine. It didnít go into limp home mode at all.

    Iíve taken the fuel out anyway just in case and put some fresh in. Have reset the fault code an will see what happens!

    Really appreciate the help!

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