Not getting data from PMS5003

Using Arduino Sensors
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We connected the PMS5003 sensor to Arduino Uno. We do not have the breakout board, we connected it by soldering the wires. The connections are:
Pin 1 on sensor - 5V
Pin 2 on sensor - GND
Pin 3 on sensor - not connected
Pin 4 on sensor - Pin 2
Pin 5 on sensor - Pin 3

Code can be seen here: #include <SoftwareSerial.h>SoftwareSerial pmsSerial(2, 3); void setup() { - Pastebin.com
If the PMS5003 does not read data, the program outputs "no data available" and this is all the serial monitor shows.
Any help would be appreciated greatly.

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