I am getting P0206 and P0306 codes when I try to start my car and my engine is hot. Example: Drive home from work. Stop at the grocery store. Go to start my car, engine light comes and I have a rough idle. 'Key Dance' to get the codes. I get P1684, P0206 and P0306. Really rough, staggering acceleration. I can 'drive it out' after a couple of miles.

 

P0206 is injector control circuit for injector 6 and P0306 is cylinder 6 misfire. Chances are the cylinder 6 injector is firing flooding the cylinder causing the misfire. Check where the wiring harness goes around by the rear head behind the coil pack. It is probably rubbed through causing the injector to short to ground and fire all the time.