Change the engine of a Nissan Sentra 2004. And now appeared codes P1031 p1148 .. Maybe because the car had a federal motor and the other is California?

Replace the power steering pressure sensor. replace both the O2 sensors.

Hi am having a BMW 523i (automatic) and i need to put ATF but i dont know which transmission oil to buy....

Code 1148 and 1031 are both for the O2 sensor in front of the catalytic converter. The sensor would need to be tested with a scanner and a multi-meter.
Source: WHAT is p1148 code and P1031 code for Nissan sentra 2005?

Duplicate question

loosen and re tighten the top left (rear) o2 sensor and check the connector is not loose...

Wow, looks like I have answered a question like this back on July 26th.
Code 1148 and 1031 are both for the O2 sensor in front of the catalytic converter. The sensor would need to be tested with a scanner and a multi-meter.

Well looks like all 4 codes point to the O2 sensor bank one sensor one.
Code 1148 and 1279 are for problems with the performance of the sensor, code 1031 is for a problem with the heater in the sensor, and code 420 is for poor performance of the catalytic converter on bank one which could also be the sensor.
I would probably replace the sensor or switch it with the one on bank two and see if the codes change.

there is a emission system recall for these codes for your year and model contact the Nissan dealer, it is a no charge repair.
here is the summary of that recall

MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0300-P0306, P1273 OR P1283. *TT *SC
Make : NISSAN Model : QUEST Year : 2004
Manufacturer : NISSAN NORTH AMERICA, INC.
Service Bulletin Number : 04028A Date of Bulletin : MAR 24, 2004
NHTSA Item Number : 10005976
Component : ELECTRICAL SYSTEM
Summary :
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P1031, P1051, P1148, P1168 (A/F SENSOR HEATER / CLOSED LOOP) ON 5 SPEED AUTOMATIC TRANSMISSIONS ONLY. (THIS VERSION SUPERSEDES NTB04-028.) *TT

Have you cleared the codes at least once?
The new o2 sensors should have removed all those codes.The sensor closest to the engine b1s1 may be defective.Check wiring and plug to that one closely.

You can buy motor flush at most auto parts stores and use according to instructions and do it yourself or bring to a repair shop that has an engine flush equipment and have it done.