Trailblazer P0301, Is the coil bad

Chevy Trailblazer  P0301, Is the coil bad  Here we have a Trailblazer that has a misfire and a P0301 code.  I hooked a scanner to the Trailblazer and saw  the misfire counter going wild on Cylinder number one. The P0301 code was set because of this misfire . If you had a code reader and saw the P0301 code you could do the same as i done here and move number one coil to a different location.If coil is bad it will then set a new code  for the cylinder that is missing. Like a P0302 if moved to cylinder 2 or P0303 if moved to cylinder 3  Always remember also the plug wire or Boot can also be the cause of a misfire .  A new coil fixed this miss in the Trailblazer.

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