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Thread: Focus engine malfunction

  1. #1
    Join Date
    Apr 2012
    Posts
    2

    Default Focus engine malfunction

    Hi
    I have changed the pollen filter in a March 2009 2.0 Focus diesel. To do it I had diconnected and removed the fuse box under the glove box. The car runs but the "engine malfunction" message is on and the indicators don't work. An OBD II code reader is showing "no trouble codes". Can anyone tell me what the problem is please?
    Trevor

  2. #2
    Join Date
    May 2007
    Posts
    5,240

    Default

    Take another look and double check that the connectors are all firmly in place. Ordinary OBD 2 code readers won't read manufacturer specific codes.

  3. #3
    Join Date
    Apr 2012
    Posts
    2

    Default

    Fixed it. I needed a chappie with a fully fledged fault code reader. All caused by a fault code on the cruise control which he cleared, then hey presto – no message and working indicators. I didn’t realise modern cars have essentially two places where fault codes lodge - thanks for the steer MrDanno. A generic one covering things such as emissions which are accessible through an OBD II reader so MOT stations and the like can fix faults to get cars through MOTs. And a second manufacturer one that holds codes accessible only by more expensive readers: presumably in an effort to get people to take their cars to the main dealer to be fixed. Thanks again

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