What I should play.

I'm a 1.d4 person and I want a little more change and action. I need a new opening. Are there any suggestions? IF possible please post the ECO (Encyclopedia of Chess Openings) code.

you could try 1.e4 or 1.Nf3 which can lead to a d4 opening.

Scotch!

try 1.e4 for a change - ECO B00-C99

Play e4 if you are just starting out.  Otherwise, I would recommend d4.

What happened to best by test?

i always play d4 when im white but you can play e4 for a while..but d4 and then c4 is a very good opening for white especially

Try 1.Nf3

What should you play, you asked? How about chess?(lolz) Anyway, maybe d3 to expect d5 then play d4 to transpose into being black(if you don't like d4 maybe you would prefer the reverse of it).