2005 Nissan Sentra 1.8 "2003 p0300 p0355" Questions

2003 lincoln navegator with code po300-po355 what that means? p0300 is usually a random multiple misfire and p0355 is an Ignition Coil E Primary. The P0300 code is triggered because of the P0355 code.

...2003 f150 supercab v8 and i am getting errors p0300 p0351 p0352 p0353 p0354 p0355 p0356, P035x call out is Ignition Coil x Primary/Secondary Circuit Malfunction I can't have six coils go at once, is ...

...P0300,P0301,P0304,P0308,P0316,P0355.. Why am I getting so many misfires?? spark plugs look fairly new and there are 4 new coils on cylinders2,3,5,6.... What steps should i take?? will fuel filter and ...