I don't know how many times I've used the carb cleaner spray to get into the nooks and cranny's in a gun that a brush or mop can't get to. Tonight, I'll put some oil on it and try again. I can't imagine in any circumstance where that alone would be keeping a 22lr pistol of all things from functioning 100% all by itself, but I'm willing to try it. Hopefully I'm wrong.
As far as putting the VQ parts in wrong, that's not the case. I followed a youtube video step by step. The firing pin would be impossible to install incorrectly, but the little spring below could be screwed up which is why I confirmed how I had it on you tube. The extractor is impossible in stall incorrectly. I can't imagine how that could be done.
I believe gmcttr is referring to the original VQ install, not your firing pin install, necessarily. But I 100% agree with him that cleaning with carb cleaner and not oiling isn’t going to tell us much of anything until you get some oil on it in the proper places.