P0313 — Misfire Detected With Low Fuel

P0313: Misfire Detected With Low Fuel — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Misfire Detected With Low Fuel. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • Misfire warning or uneven engine operation, potentially with low fuel level.
  • Low fuel level can coincide with fuel-delivery interruptions, but it does not prove that running out of fuel caused every misfire.

Possible causes

  • Very low fuel level or intermittent fuel pick-up/pressure when cornering or accelerating.
  • Separate ignition, injection or engine-mechanical issue if the misfire persists after restoring normal fuel supply.

What to check

  • Record P0313 and related cylinder-specific misfire/pressure codes with freeze-frame.
  • Check indicated fuel level and any fuel-delivery restrictions; add suitable fuel if the level is low.
  • Recheck whether the misfire persists with normal fuel level; monitor cylinder counters if supported.
  • If it persists, diagnose ignition, fuel pressure and combustion by the relevant OEM tests.
  • Address any confirmed faults and verify operation; do not treat refueling alone as a universal repair.

Also written as: P0313-00, P031300, PO313 (some scan tools add the fault-type byte, e.g. -00).