Wait, so if I understand this correctly, the TypeR worked at first, but not anymore?
Have you tried one of the other outputs(S2,S3, etc..)? Is the board still recognized(Green orb in Simdash)?
If you have a voltmeter you should measure the voltage between the "GND" and "12V" terminals of the pro gauge. Obviously this should be 12V. Try measuring with and without a gauge connected to see if there's a difference(It could be fine at rest, but dip in voltage under load).