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2010 MINI COOPER
1.6L I4•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor507Torque4364Fluid7DTC898Battery1Maintenance0Recalls2
P1348high severityPowertrain

Misfire Cylinder 4 With Fuel Cut-Off

on 2010 Mini Cooper 1.6L I4 · FWD

What this code means

The DME detected a severe misfire on Cylinder 4 triggering fuel cut-off to protect the catalytic converter. This is a catalyst protection strategy that disables fuel delivery to the misfiring cylinder.

Symptoms

  • Check Engine Light flashing
  • Rough running
  • Reduced power
  • Engine vibration at idle

Common causes

  • Faulty ignition coil Cylinder 4
  • Worn or fouled spark plug Cylinder 4
  • Injector failure Cylinder 4
  • Low compression Cylinder 4
  • Intake manifold leak

Diagnostic steps

  1. Check misfire counters
  2. Swap ignition coil from Cylinder 4
  3. Replace spark plug Cylinder 4
  4. Test injector Cylinder 4
  5. Compression test

Repair notes

Replace the faulty ignition component on Cylinder 4.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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