My VX was throwing tons of codes at the time, we replaced the TP sensor, P0123 (TP Sensor Circuit Input High) & P1121 (TP Sensor Circuit Intermittent Voltage High), my MAP senor an a Mode range selector switch, That cleared the codes then got another code and we could not find out what it was ands the only other thing connected to those items in some way was the EGR valve, replaced it and have not had another code since...