Check engine Light

[impala11419]

Guy I just want to be on the safe side here. Im taking a road trip with the family in about two weeks. Yesterday my engine light came on. it threw the code P0455. I seen that code is the following: Evaporative Emission (EVAP) System Leak Detected. I changed the gas cap the day before to the locking ones. That same day it started to rain cats and dogs and i was driving in it (no choice). so i swapped the original back and later on in the day the light went off. was that the actual issue or should i take the car to the dealer. I dont want to get stuck on the road with 2 kids and a pregnant wife going from NY to FL lol. Any advice will be helpful.

[done]

Guy I just want to be on the safe side here. Im taking a road trip with the family in about two weeks. Yesterday my engine light came on. it threw the code P0455. I seen that code is the following: Evaporative Emission (EVAP) System Leak Detected. I changed the gas cap the day before to the locking ones. That same day it started to rain cats and dogs and i was driving in it (no choice). so i swapped the original back and later on in the day the light went off. was that the actual issue or should i take the car to the dealer. I dont want to get stuck on the road with 2 kids and a pregnant wife going from NY to FL lol. Any advice will be helpful.

Yes, the gas cap was most likely the problem.

[BBMagnumRTAJ]

Yes, the gas cap was most likely the problem.

+1.

Dont worry about your trip. you will make it just fine.

[cqlink]

One of the first things to do when the CEL comes on is to remove and replace the gas cap.

Looks like you have natural ability!!!

Enjoy your trip!

[fnkychkn]

unless it was the specified mopar locking gas cap, it would definitely leak. i have yet to see an aftermarket locking cap actually seal correctly. perhaps it was not properly specified for this application.

[dudeiwin86]

i got a P0456 which is a "minor" emissions system leak.
your code is slightly different and may not be considered minor(which is actually the word that the code description uses, when i check it with diablo)

my problem was that i was fueling up with gas. turning my cap for ONE click and going.

i started turning it like for 10 clicks and then going.... after clearing the code it hasnt come back, and previously i had cleared it like 3 times and it kept coming back using the same old habit.


either way, youre fine to drive cross country if needed :) being that you have swapped gas caps and the like, its virtually impossible that is any other part of your fuel system with a leak.

[impala11419]

thanks guys