TOYOTA 4RUNNER ENGINE MISFIRE

2002 4runner One Cylinder Not Firing, Check Engine On, Vcs Off Lite On.

When I Accelerate Up To 50-60 Mph It Starts Missing. Perhaps Needs A Tune Up Or Did I Possibly Put "bad Gas" In It. Or Worse?

My 4runner Is Misfiring Under A Load 3.4 Liter

Chine Engine Light Came On, I Check The Code P0301 This Mean Cyclinder #1 Misfiring, I Have Changed Spark Plugs, Coil, Fuel Filter, Cleaned...

Cylinder 1, 3 And 5 Misfires Simultaneously At Idle.