Please can anyone help me...

I have just chipped my Xbox with one of these new chips that need the power button to be pressed for at least 2 secs. This is the code I use for the vellman remote receiver, but I need to send the button held for 2 secs.

7000 006D 0000 0008 0011 000D 0010 0002 0017 0003 0003 0002 0002 0003 0003 0003 0002 0003 0000 00BB

Thanks in advance

Craig