P0307 – Cylinder 7 Misfire Detected

Description

The ECM detects a misfire in cylinder 7.

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Symptoms

  • Misfire
  • Rough idle
  • Poor acceleration

Causes

  • Faulty spark plug
  • Ignition coil failure
  • Injector issue

Diagnosis

  • Swap coil or plug
  • Check injector

Repair

  • Replace spark plug or coil
  • Repair injector