On my way to work this AM rolled over to 1900 and check engine lt comes on, feels like it has no power.
P 0456 LunaSea
Dealer just called gas cap. Replaced and no check engine light. Hard to believe the gas cap shuts down the engine like it did.
Did your engine shut down completely? Because what mine would do while accelerating the engine would putt like it's out of gas
Here we go again. This time it came on at start up, no loss of power. Same code p0456. 4 days after filling up with gas so I don't believe it's the cap. Argh.
Are you running premium gas? My 3.8 runs like SH** without premium gas give it a try see it helps any
I have a 2015 JKU Hard Rock.... Same thing happened to me. They "fixed" it (replaced gas top). About 2-3 weeks later it did it again, they "fixed" it (replaced sensor). About a month later again!! This time I told them I don't care how long it takes, I want the best person you have in this garage on my jeep to figure out what's going on! 11 days later they ended up doing a smoke test and said I needed a new charcoal canister. They fixed it and I'll be damned if the engine light didn't come on again about 3 weeks later. They took it back in and replaced a sensor again. I'm about 1 month in and knock on wood it's been good. Talking about frustrating.
Got my Jeep back today, replaced gas cap again and the Esim pump. WOW I never realized how poorly my Jeep was running till I drove it home, it has not been running right since the day i bought it.