P0204 – Injector Circuit Cylinder 4

Description

Cylinder 4 injector circuit is malfunctioning.

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Symptoms

  • Car misfires
  • Rough idle
  • Poor acceleration

Causes

  • Wiring fault
  • Bad injector
  • ECU driver failure

Diagnosis

  • Inspect wiring
  • Test injector
  • Scan misfire counters

Repair

  • Replace injector
  • Repair wiring
  • Repair ECU