New to me 03, what should i look out for
 

I'll be purchasing an 03 MPV tomorrow. It's got 180k miles, body is solid, no visible rust no major noises coming from engine. Shifts smooth (automatic) and doesn't smoke. Aside from a full detail and fluid/belt updates. What should I look out for or replace asap. Any warnings for new owners? This will be my wife's daily but as a guy that cant keep his hands to himself what are common upgrades? I'll be searching the forums thoroughly in the future just trying to get some conversation going and mingle with people in the know.

Bad 02 sensors
 

hello, there are four oxygen sensors two in front of the engine and two in the back that regulate air and fuel mixture. if one goes bad it will cause the engine to stumble at 2000 rpm or so and if one goes bad all of them will foul out