P0313
Misfire Detected With Low Fuel
Ignition / misfire
Generic OBD-II
High
What it means
P0313 means the engine misfired while the fuel level was low. The ECM sets this code to flag misfires caused by fuel starvation — the pump drawing air when the tank runs near empty — rather than a purely mechanical fault. It often clears after refueling, but can also point to a weak fuel pump or clogged filter.
High
Can I keep driving? Refuel promptly — running the tank near empty causes fuel starvation and misfire; a sustained misfire can also damage the catalytic converter.
Common symptoms
What you'll notice
- Check-engine light on
- Misfire and rough running when the fuel level is low
- Hesitation and reduced power on acceleration
- Stumbling that eases after refueling
Common causes
Most likely first
- Very low fuel level starving the fuel pump, especially on hills or hard corneringLikely
- Weak or failing fuel pump / low fuel pressureCommon
- Clogged fuel filter restricting flowCommon
- Clogged or dirty fuel injectorsLess often
- Worn spark plugs or ignition coils that misfire under lean conditionsLess often
How to diagnose & fix
Work through it in order
- Refuel the vehicle and see whether the misfire clears — this is the first and cheapest step.
- Read freeze-frame data and check for accompanying misfire codes (P0300–P0308).
- Test fuel pressure at the rail; a pump that can't keep up when the tank is low is a common cause.
- Inspect the fuel filter and injectors; replace or clean as needed.
- Check spark plugs and coils if misfires persist with a full tank. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0313?+
Keep the tank filled and drive gently. A misfire from fuel starvation can damage the catalytic converter if it continues, so don't run it near empty.
Can I just clear P0313?+
You can, but if the real cause is a weak pump, clogged filter, or a habit of running low, the misfire and code will come back.
Related codes
Often seen with P0313
Read & clear P0313 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX