P0456 Code Jeep Wrangler. Evaporative emission control system leak (small). If your wrangler has warned you at all in the last few months.
Jeep Wrangler TJ - EVAC repair - Trouble codes P0455, P ... from i.ytimg.com
The evaporative emission control (evap) system in your jeep prevents fuel vapors from escaping into the atmosphere. Big surprise, it came back on after a few hundred miles. I'm not sure what years but if you have the gas cap light coming on this may be your problem as well.
The most common problem in jeeps is the diagnostic code p0456 evap small leak but in this case the jeep wranglers from.
Malfunction indicator lamp (mil)(k83) active. Anyways the check engine light decided to come on. My jeep has thrown that code twice and both times it went away on its own after a week or two. I cleared the code and jeepstergirl drove it to work yest with.
