Missing Fire, please help
 

05 freelander, three codes ( missing fire, ignition timing, cyl 3 missing fire), lose power runs like is missing a cylinder, we check the plug and it was good, also we exchange the coil and was good too, we have power, ground but no the signal, what can be wrong? please help me, Thanks

Since I am not a Freelander Guru, let me check with a Rover Mechanic Friend...