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p0420

  1. 2008 Mini R55 FAULT CODE P1479/P0420

    MINI Faults & Fixes
    Hi all, I recently purchased a 2008 Mini Cooper Clubman S , Ive had it for about a week and all of a sudden the engine light has come on. The codes are reading P1479/P0420. From looking around on the net i believe P1479 is a air leak and tends to point at PCV hose. Would this have caused the...
  2. Mini R56, better performance with Super Unleaded

    General Discussion
    Had a Mini R56 for a year now and recently upgraded it's catalytic convertor due to an MOT fail. However, since then it juddered and struggled to gain speed for a moment, before being okay. The engine light flashed sometimes and the P0420 error showed as a cat convertor issue. However, I...
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