S2000 click noise

[EP3TYPER]

Hi guys,

When I start my car (cold start) and rev it to about 3k Rpm quickl, as soon as I release the accelerator there is a click noise that comes from the engine bay and the cluster flickers once as well.
Anyone know what this could be? Is it normal?

Ross

[EP3TYPER]

Heres a video guys, a little difficult to hear but as soon as its revved and it they drop you will notice a flicker in the cluster along with the noise (sounds like a relay)

Edit: Last two revs show the issue


http://www.youtube.com/watch?v=JavTd0Qj76E&feature=youtu.be