I RECENTLY CHECK CODES FROM MY 1994 STS AND THEY READ...... RO26.....TO23....SO12....S061......PLEASE HELP

 

R026 Driver Initiator Circuit Open
T023RF Wheel Speed Sensor Continuity Fault
S061 Right Front Position Sensor Fault

That's what I found on the OBD-II website, although I couldn't find the code for S012... You should take it to Auto Zone, and have them read it for free and let them tell you what's wrong.