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Guest Message by DevFuse

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Average MPG randomly resetting

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#1 Bezzawezza


    New Fiesta Member

  • Fiesta Forum Member
  • Pip
  • 1 posts
  • Region:Decline
  • Location:Wales
  • Current Vehicle:Fiesta 2013

Posted 11 July 2017 - 02:35 AM

Hi all

have a weird thing happening with the wife's 13 late Fiesta. Randomly every few days when you start the car the electrics will stutter and the average mpg will reset itself.

it started in January but we noticed at that time the battery was low so we changed that and the problem seemed to go away. 6 months later though it's back and this time the battery appears to be fine (cigarette lighter battery tester reads 12v at rest and 13.5 -14v when running the car).

Does anyone have any idea as to what could be resetting this intermittently?

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