I just changed out my Ignition Switch the other day. I don't think that has anything to do with my problem, but I thought I would add it in just in case. I had my check engine light along with my EPS light come on and no RPM indication. I had SPN code 84 on two errors one was Error code 0 and FMI code 19. The other was Error code 1 and FMI code 2. The P Codes were 0503 and 1069. I replaced the Speed sensor and tried to reset by turning the key on and off, along with driving the Ranger in low above 4,000 RPM for 30-40 Seconds. The engine and EPS lights keep coming on then off and I can feel the EPS working, then not working. Any Ideas?????