Ok so I have an evap code pop up plus the gas cap warning at the same time now my jeep will not rev past 4k ( it's like it hits a rev limiter and the fuel shuts off which I found out trying to pass a semi on the hwy (scary) are the two related, is this a limp feature? It's a 12 and I plan on taking it to the dealer but in an unrelated problem I'm having an issue with my rear gears potentially having an install issue and I don't want to bring the jeep into the dealer with the horrendous rear gear whine until that's fixed ( don't need the dealer knowing about the lockers and 4.56's )

Steve

 

Have you crawled up underneath to look at the evap canister and related hoses? If it is broken from hitting an obstacle I would not take it the dealer anyway. That kind of damage is not an issue they will want to cover. Just replace it yourself.

If everything appears undamaged then something else is going on, and you may need dealer assistance to figure it out. Plus then it should be warrantied.

Crawl under there and take a look.

 

No issues with evap, fuel fill hose needs to be replaced and I have one. Just not sure if the 4k rpm cutoff is related

 

I see, sorry it was not clear to me from your post you had already checked it out. Not sure either about the RPM thing, although it would not surprise me if it was related if it was fine before the codes.