[Shotimes] 1st problem with my sho need help

[Rodrigo Cuellar]

Just bought my 94 atx with 54k on it in feb for $5500. Its been great driving
it around. Anyway my check eng light came on. I came across with a scanner the
mac mentor from mac tools and pulled codes 124 and 542.  124 TP voltage too
high,542 fuel pump secondary. I've erased the codes but they come back
intermittenly. Meaning the light will stay on for about 10 min or so then it
will go off by itself when I'm at cruising speeds.Will take info.