What would cause the 2 and 3 sparkplugs not to fire while the 1 and 4 plugs fire on a 2.4 engine when the coil is brand new?

i had the same problem # 3 plug was fouling and replaced it had the same problem again replaced the coil, # 3 fouled again had coil bench tested and came back ok upgraded to ngk platinum series with accel spark thundersport 8mm wires and upgraded to a higher resistance coil from accel being a Mitsubishi engine champion plugs etc, are crap in the cirrus stay import replacing engine components on your cirrus no matter the cost my cirrus has 310,000 kms and it runs beter than new on rebuilt engine and trans