Random P0352
 

I get a random P0352 code once every 3 or so drives. Sometimes just the light will come on, no misfire associated, other times it will misfire so bad I can feel the engine shake and the traction control light comes on. It can also last for a few seconds or more.
I've flipped coils between cylinder 1 and 2, and even replaced the coil, code remains p0352 (cylinder 2). I cant troubleshoot this as its random and momentary. I've been told to check the harness, and I've checked continuity while filding/bending the pigtail/connector for cylinder 2 with no change in any 3 of the wires.
Anyone else experienced a problem like this?
Also, where can I buy a new harness with the updated coil plugs? Where can I get just a pigtail to try and replace the connector on plug 2?

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