Outer Limits 4x4 Board

My h20a has some troubles where starting:
http://www.youtube.com/watch?v=Dz-CRDmBQVg" onclick="window.open(this.href);return false;

as the video show, it stay at low rpm then without any action hops at proper level, if I press accelerate pedal before rpm is proper engine stops completly.
Any ideas whats wrong? Repleaced throttle, tps, maf and sparkplugs already.

How about your spark plug to coil boots did you change them...? They often get hard and can cause engine to run really irregularly.

I''ve checked them yesterday igniting with each single coil boot with spark plug on view, spark is ok at each of them.

Is it ok once it warms up?

No difference if starting cool or hot engine. This happens totally random, but quite frequently.

unlikely but possible, what are valves and clearances like?

Nevermind, solved problem just cleaning throttle and Idle Air Control Valve