AutoCodes – Saturn – P0496 Saturn

P0496 Saturn Code - Evaporative Emission System Flow During Non-Purge

Quick Answer

The evaporative emission (EVAP) control system limits fuel vapors from escaping into the atmosphere. Common causes include Faulty EVAP Canister Vent Valve, Faulty EVAP Canister Purge valve, Plugged EVAP canister condition. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0496 Saturn indicates Evaporative Emission System Flow During Non-Purge.
Common causes
Common causes include Faulty EVAP Canister Vent Valve, Faulty EVAP Canister Purge valve, Plugged EVAP canister condition.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 42,985
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Apr 24, 2019
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Code P0496 Saturn Description

The evaporative emission (EVAP) control system limits fuel vapors from escaping into the atmosphere. Fuel tank vapors are allowed to move from the fuel tank, due to pressure in the tank, through the vapor pipe, into the EVAP canister. Carbon in the canister absorbs and stores the fuel vapors. Excess pressure is vented through the vent line and EVAP vent solenoid to the atmosphere. The EVAP canister stores the fuel vapors until the engine is able to use them. At an appropriate time, the PCM will command the EVAP purge valve open, allowing engine vacuum to be applied to the EVAP canister. With the EVAP vent valve open, fresh air will be drawn through the valve and vent line to the EVAP canister. Fresh air is drawn through the canister, pulling fuel vapors from the carbon. The air/fuel vapor mixture continues through the EVAP purge pipe and EVAP purge valve into the intake manifold to be consumed during normal combustion. The EVAP system requires the PCM be able to detect a leak as small as 0.040 inch in the EVAP system. The PCM uses several tests to determine if the EVAP system is leaking.

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OBDII Code P0496 Saturn - Evaporative Emission System Flow During Non-Purge - AutoCodes.com
P0496 Saturn Code - Evaporative Emission System Flow During Non-Purge

What are the Possible Causes of the DTC P0496 Saturn?

  • Faulty EVAP Canister Vent Valve
  • Faulty EVAP Canister Purge valve
  • Plugged EVAP canister condition
  • Faulty EVAP Pressure Sensor
  • EVAP Canister Vent Valve harness is open or shorted
  • EVAP Canister Vent Valve circuit poor electrical connection

How to Fix the DTC P0496 Saturn?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0496 Saturn 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 P0496 Saturn code?

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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 P0496 Saturn Code

1. What does OBDII code P0496 for my Saturn indicate?

The P0496 code specifically points to an issue with the evaporative emission system flow during non-purge in your Saturn vehicle.

2. What are the common symptoms of a P0496 code on my Saturn?

Common symptoms of a P0496 code may include the illumination of the check engine light, decreased fuel efficiency, and in some cases, a noticeable gasoline odor.

3. What are the possible causes of a P0496 code in my Saturn?

Potential causes of a P0496 code include a faulty purge valve, a leak in the evaporative emission system, a clogged charcoal canister, or issues with the fuel tank pressure sensor.

4. How serious is a P0496 code on my Saturn?

While a P0496 code may not cause immediate drivability issues, it is still important to address the underlying problem to prevent potential damage to the emission control system and ensure your Saturn continues to run efficiently.

5. How can I diagnose a P0496 code on my Saturn?

Diagnosing a P0496 code typically involves inspecting the evaporative emission system components for leaks, testing the purge valve and charcoal canister, and checking the fuel tank pressure sensor for proper functioning.

6. Can I still drive my Saturn with a P0496 code?

It is generally safe to drive your Saturn with a P0496 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to maintain optimal vehicle performance and emission control.

7. How can I repair a P0496 code in my Saturn?

Repairing a P0496 code may involve replacing the purge valve, repairing any leaks in the evaporative emission system, cleaning or replacing the charcoal canister, or addressing issues with the fuel tank pressure sensor.

8. Can I reset the check engine light after fixing a P0496 code on my Saturn?

After repairing the underlying issue causing the P0496 code, you can reset the check engine light using an OBDII scanner or by disconnecting the car battery for a few minutes.

9. Will a P0496 code on my Saturn affect emissions testing?

Yes, a P0496 code may cause your Saturn to fail emissions testing, as it indicates a problem with the evaporative emission system flow, which is crucial for reducing harmful emissions from the vehicle.

10. How much does it typically cost to repair a P0496 code in a Saturn?

The cost of repairing a P0496 code in a Saturn can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

Discuss the causes and fixes for P0496 Saturn OBDII Code

  • where is it located on a 2008 saturn aura the purge flow

  • "Purge Flow" is not a part, it's the action performed by the EVAP Canister Vent Valve. If there is no purge flow, then there is most be a problem with the EVAP Canister Vent Valve. The Vent Valve is on the side of the fuel tank (#2 on the image below).

  • Hi I have a 2006 Saturn ion and the
    engine light is on it's and it's says evaporative emission system high purge flow how much will that cost and what is that

  • Where is the EVAP Canister Vent Valve on a 2007 Saturn Sky?

  • On top of the gas tank, attached to the EVAP Canister.

    Image

    Click here to enlarge image

  • Where is this located on a 2007 Saturn Outlook? Thanks!

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