Engine Code P0456 Evap System

[Mr.Franchise009]

Hi Fellow ST owners,

This weekend my car check engine light came on and since I have Automotive plugs in it popped up with P0456 Evap System Leak Detected (very small Leak)

I have just installed the Cobb intake and Turbosmart Dual port shorty. I am not sure if those two thing have to do with the leak but i have looked and couldn't find anything. Yeah advice will help thanks!

 

[CanadianGuy]

Likely not. Have you been overfilling your fuel tank?

 

[Mr.Franchise009]

I do not overfill my gas tank. Once it stop I stop lol. They are so cheap to fill and i get 300+ miles per fill up so no need to overfill. Any other ideas? July 3,2015 car is a 2015 Car is 9 months old with 29,500ish miles on it.

 

[Noodles]

Maybe your capless filler is malfunctioning. Check and see if the little flap is closed completely. All it would take is a blob of crap coming off the pump hose to keep it open.

Sent from my SM-N910T using Tapatalk

 

[CanadianGuy]

I think it is the gas cap or evap canister as well. Have it checked out.

 

[Mr.Franchise009]

I will check that out. I de-tuned to stock maps and it cleared the code so I will drive it around on stock factory map until the light comes back on and figure it out or take it in and have ford service look at it.

 

[Mr.Franchise009]

Ive been driving the car around for a 10+ days and no check engine light or code as popped back up. I am just trying to figure if it was a false alarm but it did happen once before this post and I also cleared it then. I want to put the cobb OTS 91 map back on the car but don't want the light to come on again. Could it have to do with the cobb Stage 1 map? i know its a stretch but with it not popping back up I don't know what it could have been as i haven't fixed anything.

 

[Diabs]

Just dropped my car off for its first engine light...97,000km...
Evap or gas flap code...still under warranty either 5yrs or 100,000km!
The dealer was busy when I entered, then said we will take you right away as I was close to the 100km...thought it might of been a service light for tranny fluid flush and spark plug change...they laughed...our car doesn’t even have a oil reminder...who needs the added weight anyways [emoji6]


Sent from my iPhone using Tapatalk