99 f150 4x4 4.6, 160,000 miles. Well I finally got rid of my 0401 code by cleaning the egr build up in the throttle body tube like everyone suggested here. Truck was fine been driving for a couple of weeks. Now today I get a 0153 code - 02 sensor slow response bank 2 sensor 1. I am getting ready to drive this truck next weekend to Georgia and leave their for hunting season. What do I need to do to fix this. Thanks for all your help.

 

A P0153 can be caused by a vacuum leak, faulty injector, wiring problem, misfire etc or a bad O2 sensor.
After checking carefully for vacuum leaks you could try swapping the 2 front O2 sensors side to side and see if the trouble code follows the sensor. If it does you know the sensor is the culprit.
Unfortunately the sensors on these are quite hard to get at to replace.