Thread: Mk 1 Focus starting problem
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Old Jan 3, 2017 | 03:03 AM
  #6  
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iansoutham
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There may be a glass fuse inside the ECU as a backup against power spikes. There was on my old 2000 Fiesta. Battery level dropped as it was not used, started the car and it spiked the ECU, blowing the fuse inside. Same symptoms as yours.
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