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P0496 is a diagnostic trouble code (DTC) for "EVAP Flow During a Non-Purge Condition". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
This is a generic code and it applies to all makes of vehicle, however, it does seem to be more prevalent in vehicles that come from GM. It means there is an issue with the purge flow in the evaporation system. Those who have Mazda, Kia, Hyundai, Honda, and Acura will find that the code’s description is slightly different. It is called EVAP system high purge flow, but it means the same thing.
The code means that there is an undesirable amount of intake vacuum flow into the EVAP system. When the vacuum in the EVAP system is higher than the predetermined value it can cause the code to set.
There are a number of potential causes for the P0496 code to appear including the following:
In certain vehicles, other causes could be at play. In the Hyundai vehicles, the cause can be due to a leaking EVAP system holds, while in Kia and Mazda, it could be due to a faulty purge flow sensor.
Some of the most common symptoms of a P0496 OBD-II code include the malfunction indicator light coming on in the vehicle. However, there will not likely be any other symptoms that are noticeable by the driver. In some cases, there may be issues starting the vehicle, and the engine could be “running rich”, which can cause issues with the catalytic converter and other engine components.
When a mechanic has to diagnose a vehicle, he or she will utilize an OBD-II scanner connected to the vehicle’s computer. The computer will store any issues with the vehicle in trouble codes. When they see the P0496 code, they know that the vehicle potentially has a problem with the EVAP flow during non-purge conditions. To make sure that the code is accurate and was not triggered by mistake, they will then reset the code and run the vehicle. If the code comes back, they know it is a problem that they need to fix.
One of the most common mistakes made during the vehicle diagnosis is believing that the problem always lies within the evaporative emission control system components. Mechanics may replace these when in actuality there is a vacuum leak present. In some cases, it might be as simple as a fuel cap that is not tightened properly. It is important to check the smaller and simpler potential solutions first and then work your way up to the larger potential replacements and repairs.
Even though there are few signs and symptoms of this type of problem in the vehicle, it is still important to get the problem fixed as soon as you are aware of it.
The following are some of the potential repairs that can be utilized to fix the P0496 code.
If this or any other issues are present in your vehicle, do not ignore them. It is best to take them into a mechanic to have them dealt with properly to make sure that the vehicle is in good condition. Ignoring problem such as this can eventually lead to other issues with the car or truck.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.