what would cause cel PO303 to flash misfire cyl 3 -new coils and other work done on 2000 Jeep Cherokee

loses power,also cel p1899 and PO705 any connection? thank you -last time got 350 miles before it acted up

Asked by for the 2000 Jeep Cherokee
you have transmision issues and what kind and where did you buy coil.after market coils are known for high failure rate