Toyota: Sputtering, distributor cap, wile

Question
I have a 2006 Toy V6 LE that has 156000 miles and has been good to me in till now.  When I start it up in the morning I get sputtering and it is acting as if it is misfiring? When I get down the road it seems as if it doesn't have the power to get going, after a little wile it clears up and run's good the rest of the day? I'm thinking about getting new plugs and distributor cap what do you think?  

Answer
Hello,
it's difficult to say which is the problem, but it appears only when it's cold, so check:
- spark plugs
- ecu
- MAFS
- minimum valve (don't know how to call it in english, it's the valve which sets the min rpm).

hope this helps!
Regards,
Jack