I've seen a few threads about this, but none of them really seemed to answer my question. Probably because I'm new to working on cars so I didn't quite understand. So I bought a 2017 Fiesta ST in the US and the last owner had put a COBB cold air intake on it. As far as I know, that is the only modification done to the car. About a week after I got it, a CEL popped up for P144C. No issues with idling or stalling like I've seen in other threads. The car never stopped driving perfectly fine; the only change is that I think it's running rich since I can smell gas when standing behind it while it's idling. The dealership paid to fix it and they said they replaced the "vapor canister" and "purge solenoid valve". The CEL was gone for a few weeks until it popped up again. Any advice on what to do? Clearly the parts they replaced are just symptoms that will keep happening until I find the issue. From my research, I've learned that apparently this is an issue with 2016+ Fiestas and some people are converting some parts back to a 2015 or earlier model. I also found a $40 hose on Whoosh listed as a fix for P144C. In the reviews for that, some people were saying the CEL came back, and one guy said he wished he bought the COBB evap kit instead. So I went and searched COBB's store and all I found was another $40 hose listed as an "intake adapter". Any idea if just swapping out this hose might help the issue? I also heard that you don't even need this on an updated COBB intake design. Any way for me to find out what year design the intake on my car even is? This issue hasn't seemed to actually do anything yet, but I was wanting to get this fixed before I move onto adding more mods.
Thanks for any help.
Thanks for any help.
