Join Date: May 2010
Location: british columbia ca
you have already swapped the injectors with no improvement,rules out injector.
injector control problem is possible.listen for injector click while eng running(stethescope or screwdriver to ear)
o2 sensor will not cause single cyl missfire.
ignition secondary is most common cause,dist cap and rotor?
comp test is good,rules out valves and rings.
valve train is next,cam lobe,push rod,rocker