Sounds like you've got the other vac pipes covered too, and yes the fuel trap can be cleaned out.
I made mention of not pushing the two vac pipes on too far because it is possible to do. To get them on folks use all manner of 'tools' to help them, forcing them beyond where they should go is quite easy to do in the heat of the moment! If that happens the rubber of the elbow can end up blocking the pipe. That said, both of the nipples that you're pushing the pipes onto have a raised ledge which should stop this from happening, see pictures of those and how far the pipe should go...
…and a just to warn you if you thought getting those vac pipes were a pain in the butt to put on, you're going to love putting that sensor in the inlet manifold :)
...and while you're at that make sure the wire is on the TPC, like the sensor, it is also on the underside of the inlet manifold and needs to be connected (and working) for fueling.