EV Diagnostics
Source-backed diagnostic reference

P1304 EV diagnostic code

Cylinder 4 Misfire

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • ACURA: Cylinder 4 Misfire Source
  • FORD: EGR Calibration High Source
  • HONDA: Cylinder 4 Misfire Source
  • INFINITI: Cylinder 4 Misfire Source
  • LINCOLN: EGR Calibration High Source
  • MERCURY: EGR Calibration High Source
  • OTHER: EGR Calibration High Source

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