Hi Guys,
My 2001 4mo has a misfire issue i cant get to the bottom of...

Removed all 6 plugs and found that plugs 2,4 and 6 all had worn to gaps of around 2.2mm, plugs 1,3,and 5 were the normal 1.1mm ??
Found it odd that its on one bank of cylinders.

Installed new Bosch platinum plugs today, improved likely because of a constant gap, but still has misfire.
I was suspecting coilpack but was told wastage spark coil system shouldnt fail/fire in that order of cylinders. (rectangle block shape coil, not the individual type)

Any advive would be great,
Cheers.