Ok so if i fuse any Vehicroid Fusion with Vehicroid Connection Zone and then use Limiter Removal, will the fusion monster be destroyed or would it be uneffected from being destroyed?

The fusion is uneffected by limiters destruction effect due to the effect of connection zone so it stays on the field at the end of your turn plus it keeps the attack boost from limiter.

Almost correct. The Vehicroid monster would not be destroyed by Limiter, but it only keeps the ATK boost until the end of the turn.