i30 wont start help if got any clue.

[3brothers]

hey guys i have a i30t hard to start i have all coils working fine the only 2 that im having problems with is #2 and #5 its geting a week spark i use the same coil on the other cyl and its working fine. i replaced the crank and cam sensor. im getting the knock senser bank#1 code. i really dont get to much signal from #2 if theres anyone that had this same problem or has any idea wat it could be please let me know thanks. tottles lol.

 

[bossbrakes]

Infiniti hard to start

I am the Newbie here, this is my first post.
Usually the spark plugs have an issue long before anything else.
I had tried the Bosch platinum on my car and they really were not up to the job.
Any of the NGK's work best.
Check the color of the plug it should be dark white to brownish in color.
If the plugs are wet, the engine is not firing.
If the plugs are very white, the issue is fuel related.