Car shows 2 codes first one is p0128 and second one is p0127 pd

Question

i dont under stand the same code twice

Answer 1

the pd means pending its possible the thermostat got stuck and set the p0128 and then it was working correctly so the computer puts in under pd since the problem is pending and has not replicated.

 I would reset the codes and if there are on coolants leaks or low coolant, if  it comes replace the thermostat first, and maybe the coolant temp sensor.