Misfire, but ignition coil is good so what could be causing this?
I checked the ignition coil in the cylinder that's misfiring but a mechanic
installed a brand new one in November so it's good, I switched cylinder 8's
ignition coil to cylinder 4 to see if it would follow but now it's just giving me a
random cylinder misfiring and not pinpointing which cylinder. Could it be the
spark plugs? ( I have the wrong brand spark plugs in the truck) could that
be causing it or could it be faulty fuel injectors? My car has 124455 miles.