To solve a packaging/positioning problem, I cut the LEDs off a little IR sensor I have and inserted a 8 inch piece of wire between the LEDs and the board. Now the sensor range has dropped to almost nothing. The sensor only triggers if the send and receive are almost touching.
Assuming it’s because of the length of the wire. Any way to over come this?
Sorry but you probably damaged the RX and/or TX components with your soldering.
Get a new board.
For this kind of modification, you should consider using two pin female headers to plug onto the RX/TX component leads.
This way the components will not be damaged from soldering.