Transkiller,
p0101 is MAF out of range
p0122 is TPS low input circuit
These could be a wiring harness or connector issue (but not as likely as a bad component), as both are at or near the throttle body. Codes were cleared with a scan tool after new parts were installed, correct?
Also, have you done a fuel pressure check? Borderline/low fuel pressure will exhibit these symptoms as well and cause codes to pop up even though the sensors are fine due to how the PCM tests certain components.