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Code P0313

Quick reference

P0313 at a glance

Plain-language meaning
Your car's engine is having trouble running smoothly because there's not enough fuel in the tank.
Urgency
Moderate – Addressing this issue promptly can prevent further engine damage.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Fuel pressure gauge, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

Your car's engine is having trouble running smoothly because there's not enough fuel in the tank.

Explanation

The engine control module (ECM) has detected a misfire in one or more of the engine's cylinders, which is more likely to occur when the fuel level is low.

Technical description

The P0313 code is triggered when the ECM detects a misfire in one or more cylinders while the fuel level is low. Misfires can occur due to insufficient fuel delivery, which can be exacerbated by low fuel levels causing fuel pump cavitation or air entering the fuel system.

Symptoms

• Rough engine idle

• Engine hesitation

• Check Engine Light on

Common Causes

• Low fuel level

• Fuel pump issues

• Fuel filter blockage

Glossary

ECM: Engine Control Module

Misfire: A failure of the air/fuel mixture in the cylinder to ignite properly

Diagnosis steps

• Check the fuel level and fill the tank if low.

• Inspect the fuel pump and fuel lines for issues.

• Check for any stored misfire codes in the ECM.

Repair procedures

• Refuel the vehicle to ensure adequate fuel level.

• Replace the fuel filter if clogged.

• Repair or replace the fuel pump if malfunctioning.

Tools required

• OBD-II scanner

• Fuel pressure gauge

• Basic hand tools

Estimated repair cost

$100 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Ford F-150

• Honda Accord

Preventive measures

• Keep the fuel tank at least a quarter full.

• Regularly replace the fuel filter.

• Perform routine maintenance on the fuel system.

Error code type

Engine Performance

User experience recommendations

• Avoid driving with low fuel levels.

• Schedule regular maintenance checks.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage on fuel system components.

Historical data

The P0313 code has been associated with vehicles that frequently run on low fuel, leading to misfires and engine performance issues.

Urgency level

Moderate – Addressing this issue promptly can prevent further engine damage.

Testing conditions

• Vehicle should be running with a low fuel level.

• Engine should be at operating temperature.

Component location

The fuel pump is typically located inside the fuel tank, while the fuel filter can be located along the fuel line or near the engine.

FAQs

Q: Can I drive with a P0313 code?
A: It's not recommended to drive for long periods with this code active, as it can lead to engine damage.

Q: Will refueling fix the P0313 code?
A: Refueling may temporarily resolve the issue, but it's important to check for any underlying problems with the fuel system.

Optional diagnostic gear

Tools that may help diagnose P0313

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Fitment matters

Commonly referenced parts for P0313

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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