Suit all TB48 Motors.
This harness connects to the main engine loom and connects to all of the 6 Coil Packs on the top of the rocker cover.
it is common for this loom to go hard and brittle and sometimes the wires perish and break causing intermittent misfires.
This is a common fault and a good place to start if chasing a random misfire that comes and goes.
This is a Genuine Nissan Wiring Harness