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OBD-II Code

P0203 — Injector Circuit Malfunction Cylinder 3

General injector fault detected for cylinder 3

System Engine
Severity High
Safe to drive? Not recommended
Advanced scanner Yes

What does code P0203 mean?

General injector fault detected for cylinder 3

Common symptoms

  • Loss of power
  • hesitation
  • idle instability

Possible causes

  • Damaged injector internal coil
  • poor contact
  • cut wiring

Initial recommendation

Test injector resistance, check injection pulse and connector condition.

Safety notice

This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

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