P2138 Nissan -

Question

hello you change the pedal position sensor fault but continues to walk a few days and then return the fault, turn it off and turn and walk back to the car well, let me know because it keeps failing.
best regards

Answer 1

The throttle body is most likely bad if there is not wiring issues. You will have to do any idle air relearn after replacing it

see link below  

http://nissanhelp.com/diy/sentra/projects/nissan_sentra_idle_air_volume_learning.php