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2023 LEXUS UX 250H
2.0L I4 Hybrid•AWD•AUTOMATIC•hybrid
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Repairs0Labor474Torque1529Fluid8DTC1933Battery1Maintenance0Recalls0
P0314moderate severityPowertrain

Single Cylinder Misfire (Cylinder not Specified)

on 2023 Lexus UX 250h 2.0L I4 Hybrid · AWD

What this code means

The PCM detected a misfire but could not identify the specific cylinder. This may involve ignition, fuel, or compression issues.

Symptoms

  • Rough running
  • Reduced power
  • Flashing check engine light

Common causes

  • Faulty spark plug or coil
  • Faulty injector
  • Vacuum leak
  • Low compression

Diagnostic steps

  1. Scan for related misfire codes
  2. Inspect spark plugs and coils
  3. Check fuel injectors
  4. Perform compression test
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