Hello everyone.
I got a 2000 Grand Cherokee 4.0
It is missing on number 2 4 and 6 cylinder.
I have replaced the coil pack, pcm, crank sensor and the cam sensor.
The jeep came to me and the pcm was from autozone under warranty.
So we shipped it off and they said it was fine.
The coil pack removed will fire on number 1 3 and 5.
It will not spark on 2 4 and 6.
Does the pcm control the firing on the coil pack?
Also is there any testing I can do to see if the pcm is working right as far as correct voltage to the coil pack.
I have read and read but I still havent found what I am needing.

Also the injectors are pulsing correctly.
Thanks for any advice.

 

And the codes are:

 

302
304
306
I dont have the rest of the info in front of me as I speak.
2 4 and 6 for sure.

 

Does the computer have a driver for these cylinders as far as in the pcm?

 

TTT

 

Also PO352 and PO300

 

Fixed it today finally.
It was driver number 2!!!!!!!!