Messed up an EGR tube - Fail
Fixed the EGR tube - Win
Butt connectors - 16 Fails (assuming 2 per wire for both sensors)
Dayyyum that's a lot of fail. Solder is cheaper by the way, because you should own a soldering iron
Tough to tell if you flubbed a plug. Let's say it this way.
Left plugs in and put headers on - Fail
Removed plugs to put headers on - Win
Condition of your plug wires? Is this a Fail or Win?
Hang your head low until you get a little cash and fix the issues you shouldn't have rigged.