Check the wiring for shorts.
Check your engine mounts.
If you quickly rev your engine from idle above 3300rpm and down to idle does the engine rock heavily? It could be pinching the wires.
Thanks, i was also told to check the green,black wire running from ASD relay to ECM so I guess I have to take out the PDC out of the way along with coolant reservoir to get at it, motor mounts seem fine.