Code 1512 and 106 for a 2000 MPV
 

hello! I've been reading this forum for years. And hope to get an opinion for combined both codes. We have done a lot to this mpv. Sensors and pcv valve and manifolds Fuel pump. But both codes seem to keep coming up and I'm not a pro mechanic just a guy on a budget wrenching around on weekends. The car has 185k and losing power in top end. Planning a trip to MA from LAs Vegas. Lots of hills. Radiator has
been replaced and water pump and alternator Thanks. Any other suggestions would help as well. Also just replaced plugs and wires, shocks