Hello, was hoping someone else has had this same problem. 2010 Liberty 120,000 mile. The last 6 months I keep getting the 0302 misfire code. When I check with my scanner it also shows both banks long term fuel trim -12% and -14%. Almost always at startup when it has been sitting overnight. So far replaced...throttle body...new plugs and wires..all new injectors..new map sensor..new crank sensor..new O2 sensor (only on bank 2 upstream)..new coolant temp switch. The car runs fine after warming up and after clearing code does not come back the rest of the day.. Thank you for any possible help!!!!