AutoCodes – Saab – P0313 Saab

P0313 Saab Code - Misfire Detected with Low Fuel

Quick Answer

The Engine Control Module (ECM) monitors the fuel level. Common causes include Not enough fuel in the tank, Faulty Fuel Pressure Regulator, Faulty injectors. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0313 Saab indicates Misfire Detected with Low Fuel.
Common causes: Common causes include Not enough fuel in the tank, Faulty Fuel Pressure Regulator, Faulty injectors.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 694

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 28, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0313 Saab Description

The Engine Control Module (ECM) monitors the fuel level. This Diagnostic Trouble Code (DTC) is stored when a misfire is detected, and the fuel level is below 15% of the fuel tank capacity. Before conducting any diagnostic process ensure there is a sufficient quantity of fuel in the tank.

OBDII Code P0313 Saab - Misfire Detected with Low Fuel - AutoCodes.com — P0313 Saab Code - Misfire Detected with Low Fuel

What does this mean?

What are the Possible Causes of the DTC P0313 Saab?

Not enough fuel in the tank
Faulty Fuel Pressure Regulator
Faulty injectors
Faulty Fuel Pump
Fuel Pump harness open or shorted
Fuel Pump poor electrical connection
Mechanical problems

How to Fix the DTC P0313 Saab?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Even though this code condition states that a misfire condition has occurred at a low fuel level, does not always mean a low fuel level, it could also mean the fuel pressure is not adequate, so a fuel pressure test would be needed.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0313 Saab code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0313 Saab code?

Need more information on how to fix the P0313 Saab code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0313 Saab code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0313 Saab Code

1. What are the common symptoms of OBDII code P0313 in a Saab related to misfire detected with low fuel?

- Common symptoms include rough idling, engine hesitation, loss of power, and potential stalling.

2. What are the possible causes of OBDII code P0313 in a Saab indicating misfire detected with low fuel?

- The code may be triggered by low fuel levels, a faulty ignition coil, worn spark plugs, or a clogged fuel filter.

3. How can I diagnose OBDII code P0313 in my Saab for misfire detected with low fuel?

- Use an OBDII scanner to read the code and investigate further by checking fuel levels, inspecting ignition components, and performing a fuel system test.

4. Can driving with OBDII code P0313 in a Saab be harmful to the vehicle?

- Continuing to drive with the code may lead to increased fuel consumption, potential damage to the catalytic converter, and further engine misfires.

5. What are some repair tips for addressing OBDII code P0313 in a Saab related to misfire with low fuel?

- Replace worn spark plugs, inspect and replace faulty ignition coils, ensure proper fuel levels, and consider performing a fuel system cleaning.

6. Is it safe to ignore OBDII code P0313 in a Saab if the vehicle is still running smoothly?

- Ignoring the code may lead to decreased fuel efficiency, potential engine damage, and increased emissions, so it is recommended to address the issue promptly.

7. Can bad quality fuel or contaminated fuel trigger OBDII code P0313 in a Saab?

- Yes, using low-quality or contaminated fuel can contribute to misfires and trigger the code, especially when fuel levels are low.

8. How can I prevent OBDII code P0313 from recurring in my Saab after repair?

- Regularly maintain your vehicle by using high-quality fuel, replacing spark plugs and ignition components as recommended, and ensuring proper fuel system cleanliness.

9. Will resetting the OBDII system clear OBDII code P0313 in a Saab without addressing the underlying issue?

- Resetting the system may temporarily clear the code, but it will likely reappear if the root cause, such as low fuel or faulty components, is not resolved.

10. Can extreme weather conditions impact the likelihood of OBDII code P0313 being triggered in a Saab?

- Yes, extreme cold or hot weather can affect fuel combustion and ignition, potentially leading to misfires and triggering the code, especially with low fuel levels.