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P0611 – Fuel Injector Control Module Performance

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Symptoms

  • Hard starting
  • Rough idle
  • Misfires

Causes

  • FICM failure
  • Wiring issues
  • Low voltage

Diagnosis

  • Monitor injector control data
  • Inspect wiring
  • Check battery/alternator

Repair

  • Replace FICM
  • Repair wiring
  • Fix power issues
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