Hi, have '02 Sebring convertible with 2.7 engine, 107k miles. Plugs replaced at 90k. Car started to misfire a few days ago. Checked codes and have 0305 misfire, cylinder #5 and 0205 injector circuit, cylinder #5. Problem only happens when engine is up to full temperature after running for 10 or 20 minutes. After cool down, engine starts and runs fine but misfires again when up to temperature after 10 to 20 minutes. Cycle repeats. Once it starts to misfire it continues until engine is shut off and cooled down. Also, when misfiring starts check engine light flashes. Seems to be heat related, but not really sure. Any ideas as to problem? Thanks for your help.