1. where is the WOT Switch, isn't is the same kickdown switch??

2. how to adjust accel pedal freeplay, coz when i see the pedal in action (moving in freeplay) it is actually pulling the throttle assembly but not running the engine and when the freeplay is over (pedal is pressed against free play), here the throttle assembly moves something else attached to it and make the engine run.

3. The throttle is doing mechinical function (like in carburator cars) or doing electrical, if so then it doesn't matter how much you open the throlle, this is ECU that will decide to send fuel to the cylenders based on RPM and may be a lot of other things that i don't know.