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2002 TOYOTA 4RUNNER
3.4L V6•RWD•AUTOMATIC•gas•5VZ-FE
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor508Torque3197Fluid8DTC967Battery1Maintenance0Recalls3
P0312high severityPowertrain

Cylinder 12 Misfire Detected

on 2002 Toyota 4Runner 3.4L V6 · RWD

What this code means

Misfire detected in cylinder 12.

Symptoms

  • Check Engine Light
  • Rough idle

Common causes

  • Worn plug #12
  • Faulty coil
  • Faulty injector

Diagnostic steps

  1. Swap coil
  2. Inspect plug
  3. Test injector

Repair notes

Diagnose cylinder 12.

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