Skip the auto shop - Our mechanics make house calls

Q: Codes say evap leak, can a car accident cause it?

asked by on

I recently took my kia sedona into a mechanic to have an oil change and tune-up. The mechanic told me, when I picked it up, that there were three codes for an evap leak. he said it was all cleared and that if need be, if the engine light comes back on, that we would have to take it back in to find the leak and get it fixed. Which i plan to eventually. So to my question, I was in an accident in March. Dude hit my drivers side rear end... scraped it from the back door to the end of my van, on that side is also my gas tank. Could the accident have caused damage enough that it affected my gas tank and fuel sustem that somewhere along the like its causing the evap codes and leaks? Thanks in advance!

My car has 143000 miles.
My car has an automatic transmission.

Hey there. Depending on the impact of the hit to your van, this may have caused some damage to the EVAP system. If you have an air leak on the EVAP system, then the MAP sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air entering the engine correctly.

This will lead to an over fueling situation or an under fueling situation depending on the size of the air leak and engine operating speeds and load. This may eventually lead to destroying the catalytic converter as well. If you need more help, I would recommend having an expert from YourMechanic come to your home to diagnose the codes more thoroughly in person so that this can be resolved.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Brake pedal going all the way to the floor

From the symptoms described, it leads me to believe that your Mitsubishi is experiencing concerns with the master cylinder. A failing master cylinder can duplicate the problems you are experiencing, such as brake pedal going down to the floor. To...

Q: Can't find Schrader valve

Hi there. Many Asian manufacturers do not use the valve in their fuel systems. They have opted to not include this as it presents a fire hazard should the valve fail. A proper fuel pressure test requires other adapters that...

Q: Check engine light illuminated all the time. 2000 Mazda B4000

Hello. If there is a misfire in multiple cylinders of the engine, this will cause the Check Engine Light to come on. However, there are a lot of other reasons that the Check Engine Light could be on. It is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.