i have a 99 nissan maxima, it has 140,000 miles on it i've replaced the plugs and one ingnition coil, but i have no acceleration and now it wont start, the starter turns but i'm not getting a spark...so do i need to change all of the coils in the front or all of them all together...let me know thanks

 

6Coilpacks dont make grp suicide. If none of the six gives spark, problem is in ctrl =ECU. ECU has self diagnostics, do run. Seek info via links below, pay$

Do the injectors click? ...listen: screwdriver on injector, ear on handle. If none of the six gives click /injection, problem is in ctrl =ECU. At startup all six fire simultaneously.